Sleep and Recovery: The Role of Nutrition and Lifestyles in Overall Health

Chronic Pain (CP) is generally known as pain that occurs on most days for a time of three months or longer. Chronic pain affects a substantial proportion of the adult population. According to researchers, the pain estimates range from roughly one in ten to one in adults with this condition. Although chronic pain can be linked to some people as an identifiable medical condition, such as arthritis or cancer, for many others, there is no specific criterion or condition to an underlying cause. Regardless of the presence of formal diagnoses, a large number of people with chronic pain can experience difficulties with sleep. The relationship between sleep and pain problems seems to be bidirectional. Nevertheless, research reports that poor sleep quality may be a stronger predictor. Another research indicates that poor sleep quality may be a much stronger predictor of pain severity than is sleep disruption. Psychological and biological mechanisms connecting disturbing sleep and chronic pain are likely to be multifactorial and complex, and are not yet fully understood. One of the contributing elements may be the physical discomfort that can cause the pain, and it can heighten internal arousal and make it difficult to maintain sleep. Sleep disturbances and chronic pain are both linked to various changes within the brain. These links involve alteration in brain wave activity, including structural changes such as reduced hippocampal volume, increased activity in limbic regions, lower levels of neurotrophic elements that may contribute to neuronal growth and survival, and disruptions in dopaminergic functioning. Further to this, chronic pain can be connected to various changes in inflammatory processes in the brain, which play a crucial role in regulating the sleep-wake cycle. According to the researcher, the reported rates of sleep disturbances among people with different chronic pain can be at different levels, from moderate to very high levels. Those variations associated with different types of sleep problems can be influenced by differences in research design (Mathias, Cant and Burke, 2018).

The Role of Sleep and the Immune Interactions

Sleep, in general, is an active biological state rather than a time of inactivity, in which both the body and the brain remain highly connected. It is particularly associated with a characteristic posture, such as a heightened threshold for arousal, often lying down, reduced responsiveness to external stimuli, and sometimes a temporary loss of conscious awareness. The difference between coma and sleep is that sleep is readily reversible. Among the homeostatic drives, sleep timing is controlled by a second, independent procedure; the mechanism system and sleep become deeper and longer after extended periods of wakefulness. The internal clock synchronises and organises near 24-hour rhythms across a long range of physiological functions and behaviours, such as fluctuations in sleep propensity and alertness during the day. However, connections between immune function and sleep are deeply rooted in everyday traditional beliefs and experience. It is widely known that infections often lead to sleepiness and increased fatigue, and restful sleep, and is often viewed as a main factor in recovery from illnesses. Scientific interests in the idea date from ancient times, and the early twentieth century proposed that the existence of sleep-promoting substances accumulated and also dissipate during wakefulness. Later discoveries were made that certain immune-related molecules, such as elements derived from the bacterial cell wall, and these substances were shown, particularly in animal research, to stimulate the release of sleep regulatory cytokines such as tumour necrosis factor and interleukin-1β, and also to activate immune responses. Through the elements, immune activation contributes to the homeostatic adjustment of slow-wave sleep, the most restorative stage and the deepest stage of sleep.

The Immune System and the Central Nervous System (CNS)

The Immune System and the CNS are two main regulatory networks that detect environmental challenges, store data to prepare the organism for future experiences. Their functions are closely tied to the mechanisms that continuously balance internal and external demands. Physical stressors or acute psychological stressors mainly engage CNS controlled pathways but also have substantial effects on the immune system. Experts have clarified that the research within the field of psychoneuroimmunology has resolved many of the anatomical and molecular pathways underlying this mutual communication between the immune system and the brain. These interconnections circulate molecules and movements of the immune system, and occur during neural connections. Furthermore, both primary and secondary lymphoid organs receive extensive input from epidermic nerve fibres, sympathetic, and sensory, which may further support the close integration of these two systems (Besedovsky, Lange and Haack, 2019).

The Impact of Sleep on Hormones That Control Blood Sugar Balance and Hunger

Sleep plays an important role in regulating hormones that control appetite and sugar levels. The length, timing, and quality of sleep strongly affect the release of important counterregulatory hormones, including growth hormone (GH) and cortisol. However, sleep influences hormones responsible for safety and hunger, especially ghrelin and leptin. The body’s capability to release insulin and process glucose is also strongly connected to the natural sleep-wake cycle.

Sleep structure and routine are controlled by two primary biological timing systems within the central nervous system. The first is the circadian cycle, which indicates the body’s internal biological clock and functions independently of whether a person is awake or asleep. The circadian routine is an internal biological process that follows an approximately 24-hour timing. It is managed by a group of brain cells located in the hypothalamus, which is called the suprachiasmatic nucleus. These are important because they can produce circadian signals even when isolated, which shows that their circadian cycle does not depend on communication with surrounding cells. The maintenance and generation of these biological rhythms rely on several clock genes, such as per1, per2, per4, cry2, tim, clock, B-mal1, and also CKIε/δ. All these genes work together through complex feedback procedures that manage gene protein production and expression, helping to continue stable daily biological rhythms.

The influence of sleep pressure and circadian rhythms differs depending on the hormonal method involved. Experts have shown that growth hormones (GH) are largely regulated by sleep-wake homeostasis. In men, the most compatible release of GH occurs soon after falling asleep, especially during deep sleep stages known as slow-wave sleep (SWS), when brain slow-wave activity is at its highest. Studies including both older and younger men demonstrate a direct relationship between the level of GH released during the night and the amount of slow-wave sleep. Additionally, GH secretion is remarkably reduced or probably completely absent during periods of sleep deprivation. Therefore, this relationship is most Cortisol, on the other hand, follows a different pattern. Cortisol levels normally peak in the early morning, gradually decline throughout the day, and reach their lowest point during the evening and early nighttime period, often referred to as the resting or quiescent phase. During the night, Cortisol levels begin to rise again due to the body’s internal circadian rhythm. Changes in the sleep–wake rhythm have only a small impact on the overall cortisol. This may cause a temporary decrease in cortisol secretion. Waking up, whether at the end of sleep and during the night, can trigger a spike in cortisol release. Cortisol regulation is primarily driven by circadian rhythms, but its effect from sleep deprivation can still occur (Leproult and Van Cauter, 2010).

Nutrients That May Help Improve Sleep

A large survey of over 4,500 people was carried out to examine the relationship between sleep patterns and various nutrients. They identified that difficulty falling asleep was strongly linked to deficiencies in calcium, selenium, and dodecanoic acid, including alpha carotene and higher levels of hexadecenoic acid. Sleep shortage was linked with higher salt intake, lower carbohydrate consumption, and also deficiencies in butanoic acid, vitamin D, and noted with higher hexanoic acid and increased body moisture. Non-restorative sleep is associated with low calcium, less vitamin C, more cholesterol, and butyric acid, and also with higher moisture and less plain water intake. Although daytime sleepiness was linked to higher theobromine intake and lower water consumption, increased moisture and lower potassium levels. Vitamin B plays an important role as a coenzyme in energy metabolism. They are required for the production of particular neurotransmitters and neurohormones that regulate sleep and the circadian rhythm. According to research, vitamin B6 deficiencies may contribute to sleep disturbances and psychological stress, and this may make vitamin B important to prevent insomnia. Vitamin D deficiency may increase the risk of obstructive sleep apnea by affecting chronic inflammation and airway muscles. Vitamin A, delta brain oscillation, and neural function are crucial for healthy sleep patterns (Sharma and Dr Shubha, 2016).

Researchers indicate that using Vitamin C and E is seen as safe to reduce symptoms, especially for patients undergoing hemodialysis. Vitamin E plays a crucial role in supporting memory processes and helps to ensure adequate intake. Minerals, including selenium, iron, and zinc, are critical for sleep problems, but iron has been linked to fatigue, poor sleep, and learning difficulties. Studies show that in children with autism spectrum disorder, iron supplementation may improve restless sleep in 77%. Selenium may support brain activity and may also help regulate sleep, as low selenium levels have been linked with difficulty falling asleep (Sharma and Dr Shubha, 2016).

Omega-3 fatty acids in DHA and EPA found in fish oils are necessary for brain function and overall health. Fatty acids have been linked to fatigue, depression, and poor attention, and low intake of these fatty acids may also influence sleep. Studies suggest that children who don’t intake fatty acids in their nutrition have less slow-wave sleep.

Magnesium is linked to restless leg syndrome and insomnia. Foods rich in magnesium, including bananas, avocado, seeds, beans, tofu, leafy greens, and whole grains, may contribute to better sleep. Potassium may support muscle relaxation and nerve function, and it is abundant in citrus fruits like oranges and lemons. Calcium is essential for melatonin production, the hormone that regulates the sleep-wake cycle, and acts as a natural relaxant. Sources include dairy products (milk, yogurt, cheese), nuts, seeds, dark leafy greens, tofu, and soy milk. Low-fat dairy products provide calcium, protein, and vitamin D, supporting blood sugar balance and satiety. Whole grains, fiber-rich foods, and plant-based oils contribute to digestion, heart health, and may help manage sleep apnea symptoms and weight (Breus, 2013; McLaughlin, 2013).

Milk, especially warm milk, is a traditional remedy for insomnia, as it can boost melatonin production and help calm the brain, supporting a healthy sleep-wake cycle. L-tryptophan, an essential amino acid found in certain foods, also plays a role in promoting restful sleep.

Learn more about sleep and health from the National Sleep Foundation.

Explore nutritional guidance for better sleep at the Healthline Nutrition & Sleep Guide.

For research on sleep and chronic pain, visit the NCBI article on Sleep and Chronic Pain.

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Medical Disclaimer: I am not a medical professional and this article is based on personal research and experience. It is for informational and educational purposes only. Please consult your doctor for advice or a qualified healthcare provider before making any changes to your diet.

References

• Besedovsky, L., Lange, T. and Haack, M. (2019) ‘The Sleep-Immune Crosstalk in Health and Disease’, Physiological Reviews, 99(3), pp. 1325–1380. https://doi.org/10.1152/physrev.00010.2018
• Leproult, R. and Van Cauter, E. (2010) ‘Role of Sleep and Sleep Loss in Hormonal Release and Metabolism’, in S. Loche et al. (eds) Endocrine Development. S. Karger AG, pp. 11–21. https://doi.org/10.1159/000262524
• Mathias, J.L., Cant, M.L. and Burke, A.L.J. (2018) ‘Sleep disturbances and sleep disorders in adults living with chronic pain: a meta-analysis’, Sleep Medicine, 52, pp. 198–210. https://doi.org/10.1016/j.sleep.2018.05.023
• Sharma, R. and Dr Shubha, D. (2016) ‘Nutrients Helpful To Cure Sleep Disorders’, International Journal of Science and Research (IJSR), 5(9).

Exercises for Cardio: Evidence-Based Approaches to Cardiovascular Health

Introduction

Physical activity refers to the movement of the body produced by skeletal muscle contractions. Exercise is a specific form of physical training that is intentionally goal-directed, organised and planned to increase one or more aspects of physical fitness. Physical fitness is the ability to perform everyday activities effectively without excessive fatigue, while maintaining sufficient energy to respond to unexpected training demands and to enjoy leisure activities. Physical exercises may be classified as dynamic (isotonic), which includes movement, or static (isometric), where muscle contraction takes place without visible joint movement. In general, exercises can be further categorised into concentric actions, where muscle fibres shorten and lengthen, including a load contrary to gravity. Exercises can be categorised based on metabolic demand as aerobic, taking place in the presence of adequate oxygen. Most physical activities or physical training implement both static elements and dynamic elements. Isometric exercises mainly focus on pressure overload, and dynamic aerobic exercises focus on a volume load on the heart, and both of them positively contribute to cardiovascular health.

Increasing training improves aerobic ability and contributes beneficial adaptations in metabolic and cardiopulmonary function. International clinical guidelines strongly recommend regular exercise as an effective non-pharmacological method for cardiovascular disease prevention (Zachariah and Alex, 2017).

What are the Benefits of Exercise for Cardiovascular Health?

A physically inactive lifestyle is acknowledged as one of the five leading risk factors for cardiovascular disease, along with high blood pressure, obesity, smoking, and unhealthy lipid levels, according to the American Heart Association. Scientific research indicates that lowering these risk factors remarkably reduces the likelihood of having a heart attack, subsequent cardiac events, stroke, or the need for procedures such as angioplasty or bypass surgery. Participating in regular physical activity can positively affect many cardiovascular risk factors. Exercise contributes to weight loss, helps lower blood pressure, decreases levels of low-density lipoprotein (bad cholesterol) and total cholesterol, and increases high-density lipoprotein (good cholesterol). Individuals with diabetes who engage in regular physical activity improve their body's capability to use insulin efficiently, aiding blood glucose control.

Moderate activity can reduce cardiovascular risk when combined with other healthy lifestyle choices, including quitting smoking, balanced nutrition, and using appropriate medication. Regular exercise increases muscle function and strength, improves oxygen intake (aerobic capacity), enhances vascular function, benefits bone health, reduces the risk of disability and back pain, and improves performance of daily activities. People newly diagnosed with heart disease who engage in daily exercise often report returning to work sooner, increased self-confidence, and improved quality of life. Major public health guidelines recommend at least 30 minutes of moderate-intensity exercise per day, such as walking approximately 4.8 to 6.4 kilometres (Myers, 2003).

Fitness Prescription for Weight Management and Cardiovascular Training

Exercise recommendations for improving cardiorespiratory fitness and managing body weight are determined by training frequency, duration, and intensity, mainly through aerobic exercise. Research from endurance training studies lasting 6–12 months shows consistent fitness improvements. Improvements in maximum oxygen uptake (V̇O₂max) are closely linked with exercise intensity, frequency, and duration, often increasing 10–30%. Those with low baseline fitness levels can achieve greater improvements. Genetic factors and baseline physiological characteristics also influence V̇O₂max adaptability. Training duration and intensity are critical; higher intensity increases caloric expenditure but may also increase cardiovascular risk and risk of musculoskeletal injury. Accumulated intermittent activities and continuous exercise of at least 10 minutes are effective. Longer duration and moderate intensity are highly recommended for most adults (Garber et al., 2011a).

Role of Exercise in Lowering Inflammation Through Reduction of Epicardial Fat

Ectopic fat is the abnormal storage of triglycerides in tissues not mainly designed for fat deposition, including skeletal muscle, visceral depots, the liver, and myocardium. Epicardial adipose tissue correlates with visceral obesity, elevated triglycerides, insulin resistance, embolic syndrome features, and increased blood pressure. Perivascular and epicardial adipose tissue contribute to atherosclerosis through close anatomical interaction. In diabetes, triglyceride accumulation in cardiomyocytes is linked to left ventricular diastolic dysfunction, higher BMI, and elevated blood pressure (Golbidi and Laher, 2012).

Adipose tissue acts as an endocrine organ, secreting metabolically relevant mediators, including leptin, TNF-α, IL-6, and MCP-1. Mazurek et al. demonstrated that epicardial tissue exhibits higher expression of inflammatory cytokines than subcutaneous fat. Aerobic exercise significantly reduces epicardial and visceral fat, often exceeding changes in total body weight and BMI. Regular physical activity decreases secretion of pro-inflammatory adipokines by reducing visceral fat accumulation (Golbidi and Laher, 2012).

Cardiovascular Role of Heat Shock Proteins (HSPs)

The heat shock response is a cellular defence mechanism activated by stressors such as hypoxia, protein damage, oxidative stress, ischemia, energy depletion, and elevated intracellular calcium. Exercise stimulates heat shock protein expression in cardiac tissue, though mechanisms remain incompletely understood (Golbidi and Laher, 2012).

Categories of Physical Activity and Intensity

Daily activities beyond organized sports, including stair climbing, brisk walking, chores, gardening, and active leisure, contribute to energy expenditure and health outcomes. Activity intensity can be measured via oxygen consumption (mL/min) or metabolic equivalents (METs). One MET equals the resting metabolic rate (3.5 mL/kg/min). Activities 3–6 METs are moderate (Zachariah and Alex, 2017).

Absolute intensity does not consider individual characteristics like age, sex, body mass, or fitness. Relative intensity, measured as a percentage of VO₂max or heart rate reserve, accounts for these differences and is particularly important for older adults (Valenzuela et al., 2023).

Exercises That Increase Muscular Fitness

Muscular fitness improves through resistance training using free weights, machines, or elastic bands. Programs should include dynamic movements with both eccentric (lengthening) and concentric (shortening) contractions, targeting major muscle groups (shoulders, back, hips, legs, trunk, arms, chest). Single-joint exercises focus on functionally important muscles (abdominals, calves, lumbar extensors, hamstrings, biceps, quadriceps). Training opposite muscle groups prevents imbalances. Proper technique, full range of motion, and controlled breathing (inhale eccentric, exhale concentric) are essential (Garber et al., 2011b).

Cardiovascular Risk: An Evolving Therapeutic Approach

Lowering LDL-C reduces coronary heart disease (CHD) risk. Combining LDL-C reduction with increases in HDL-C leads to better clinical outcomes. This approach can be used by clinicians to support reverse cholesterol transport in appropriate patient groups (Superko and King, 2008).

Further Reading

• American Heart Association – Physical Activity and Heart Health
• World Health Organization (WHO) – Physical Activity Guidelines
• American College of Sports Medicine (ACSM) – Exercise Prescription for Cardiovascular Health

Medical Disclaimer

I am not a medical professional. This article is for informational and educational purposes only. Please consult your doctor or a qualified healthcare provider before making changes to your diet, exercise, or lifestyle.

References

• Garber, C.E. et al. (2011a) ‘Quantity and Quality of Exercise for Developing and Maintaining Cardiorespiratory, Musculoskeletal, and Neuromotor Fitness in Apparently Healthy Adults’, Medicine & Science in Sports & Exercise, 43(7), pp. 1334–1359. DOI
• Garber, C.E. et al. (2011b) Same as above.
• Golbidi, S. and Laher, I. (2012) ‘Exercise and the Cardiovascular System’, Cardiology Research and Practice, 2012, pp. 1–15. DOI
• Myers, J. (2003) ‘Exercise and Cardiovascular Health’, Circulation, 107(1). DOI
• Superko, H.R. and King, S. (2008) ‘Lipid Management to Reduce Cardiovascular Risk’, Circulation, 117(4), pp. 560–568. DOI
• Valenzuela, P.L. et al. (2023) ‘Exercise benefits in cardiovascular diseases’, European Heart Journal, 44(21), pp. 1874–1889. DOI
• Zachariah, G. and Alex, A. (2017) ‘Exercise for prevention of cardiovascular disease: Evidence-based recommendations’, Journal of Clinical and Preventive Cardiology, 6(3), p. 109. DOI

Understanding the Differences and Benefits of the Veganism vs. Vegetarianism

Understanding the Differences and Benefits of Veganism vs. Vegetarianism

Fresh blueberries are a nutritious option for a vegan diet, packed with antioxidants, vitamins, and fiber. Including them in your daily meals can support overall health and wellbeing.

A vegan diet is associated with plants such as grains, nuts, fruits, and vegetables. Those who call themselves vegans do not eat any food that comes from animals, including eggs and dairy products (The vegan diet, 2022).

Healthy Recommendations for a Vegan Diet

• Healthy vegans need to eat 5 portions each day of fruits and vegetables.
• Include starchy carbohydrates such as rice, pasta, and potatoes—ideally whole grains where possible.
• Choose lower-fat and lower-sugar options by consuming fortified dairy alternatives such as yogurt and soya drinks.
• Eat pulses, beans, and other protein sources.
• Include nuts and seeds rich in omega-3 fatty acids, such as walnuts.
• Use olive oil in small amounts.
• Drink plenty of fluids, up to 2 litres per day.
• Ensure adequate intake of vitamin D, vitamin B12, iodine, selenium, calcium, and iron.

The Effect of Healthy Vegan Diets

Vegan diets are usually higher in vitamins C and E, folic acid, and magnesium, and lower in calories, cholesterol, and saturated fat. Experts have found that vegetarians and vegans enjoy a lower risk of cardiovascular disease, type 2 diabetes, obesity, and certain cancers (Craig, 2009).

Plant foods—especially fruits, vegetables, and whole grains—are linked to reduced risk of chronic diseases such as colorectal cancer and type 2 diabetes. According to Fraser, vegans also tend to have lower total cholesterol and blood pressure.

To maintain a nutritious vegan diet, individuals must understand proper food balance. Vegans are known for consuming vitamin C-rich foods, which improve the absorption of non-heme iron. However, vegans may face a higher prevalence of vitamin B12 deficiency and elevated plasma homocysteine levels. Vegetarians may also have lower zinc intakes, although functional immunity shows little difference compared to non-vegetarians.

Veganism is more than just a diet – it is a lifestyle choice that avoids all animal products. Vegans are encouraged to consume B12-fortified foods such as rice beverages, fortified soy, and breakfast cereals, and to include plant foods rich in omega-3 ALA, including camla oil, soy products, ground flaxseeds, and walnuts. Unlike vegetarians, who may still consume dairy, eggs, or honey, vegans completely avoid them.

The Effect of Vegetarian Diets

Vegetarians do not consume meat, poultry, or fish. Both vegetarians and vegans can vary their diets. India has over 35% of its population following a traditional vegetarian diet (Key, Appleby & Rosell, 2006). In the UK, around 5% of people identify as vegetarian. While vegans strictly avoid all animal products, vegetarians consume dairy and eggs.

Types of Vegetarian Diets

• Lacto Vegetarian: Eats dairy products like cheese and milk, but no meat, seafood, or eggs.
• Ovo Vegetarian: Eats eggs but avoids dairy, meat, and seafood.
• Lacto-Ovo Vegetarian: Eats dairy products and eggs but avoids meat and seafood.

Historical Perspective on Vegetarianism

Vegetarianism has deep historical roots. Ancient Greeks believed animals shared similarities with humans, making it morally wrong to harm them. They saw plant-based diets as purifying for the soul and beneficial for mental clarity. During the Renaissance, figures like Leonardo da Vinci predicted a future where eating animals would be viewed as cruel as eating humans. The Enlightenment era saw thinkers such as Tyron, Rousseau, Voltaire, and Wesley promote vegetarian diets for ethical or economic reasons.

The modern vegetarian movement began in 1847 with the founding of the Vegetarian Society of the United Kingdom in Ramsgate, Kent.

and later, the Vegan Society (1944) in Leicester. Influential advocates such as Sylvester Graham, Harvey Kellogg, and Maximilian Bircher-Benner contributed to popularizing plant-based nutrition. Prominent figures like George Bernard Shaw, Mahatma Gandhi, Albert Schweitzer, and Albert Einstein further promoted vegetarianism for moral and humanitarian reasons (Leitzmann, 2014).

Vegetarian Nutrition in Recent Years

In recent decades, vegetarianism has gained global popularity for health, ethical, and environmental reasons. Despite this, vegetarians remain a minority in most countries, with India being an exception. The following table presents data from various vegetarian societies and censuses:

Country	Population (Million)	Vegetarians (Million)	% of Population
India	1260	450	35%
Italy	61	5.9	9%
Great Britain	63	5.4	9%
Germany	82	7.4	9%
Netherlands	17	0.7	4%
United States	320	12.1	4%
Canada	35	1.3	4%
Austria	8	0.25	3%
Switzerland	8	0.23	3%
France	64	1.2	2%

Western countries are gradually reducing meat consumption, with Germany showing a 10% drop. Nutrition education now focuses on promoting awareness of balanced diets and preventing deficiencies.

1. Motivation for Nutritional Balance

Motivation affects how vegetarians manage their diet. Health-motivated vegetarians are more likely to plan balanced meals and monitor nutrient intake. Ethically motivated vegetarians, on the other hand, may face imbalances due to limited focus on nutrition.

2. Nutrient Loss and Food Processing

Vegetarians aim to maintain nutrient-rich diets. However, refining grains (e.g., into white flour) can remove key nutrients. Whole-grain products such as pasta and bread help reduce cholesterol and lower the risk of digestive tract cancers due to higher fibre content.

The Importance of Raw Foods

Raw foods preserve natural nutrients and promote better digestion, satiety, and bowel health. They also encourage chewing, which supports oral health and saliva production. The German Nutrition Society recommends consuming at least 100 grams of raw foods per day.

Visit the official Vegetarian Society UK website for more resources and guidance on plant-based diets.

This was followed by the American Vegetarian Society (1850),

Learn more at the American Vegan Society.

The German Vegetarian Society (1867),

For more scientific nutrition insights, visit the German Nutrition Society (DGE).

Source: Quorn UK – What is the Difference Between Vegan and Vegetarian Diets

Medical Disclaimer: I am not a medical professional and this article is based on personal research and experience . It is for informational and educational purposes only. Please consult alwats your doctor for advice or a qualified healthcare provider before making any changes to your diet,

References

• Craig, W.J. (2009) ‘Health effects of vegan diets’, The American Journal of Clinical Nutrition, 89(5), pp. 1627S–1633S. DOI link
• Key, T.J., Appleby, P.N. and Rosell, M.S. (2006) ‘Health effects of vegetarian and vegan diets’, Proceedings of the Nutrition Society, 65(1), pp. 35–41. DOI link
• Leitzmann, C. (2014) ‘Vegetarian nutrition: past, present, future’, The American Journal of Clinical Nutrition, 100, pp. 496S–502S. DOI link
• The vegan diet (2022) NHS. Available at: https://www.nhs.uk/live-well/eat-well/how-to-eat-a-balanced-diet/the-vegan-diet/ (Accessed: 10 October 2025).

How Food and Nutrition May Support Respiratory Health

Asthma is a paroxysmal syndrome of the respiratory system, characterised by severe breathing difficulty, a constricting sensation across the chest and a heavy feeling of imminent suffocation, happening in the absence of fever or limited inflammation. In many cases, asthma or an asthmatic episode is often followed by several days of symptoms suggestive of gastrointestinal disturbance. The symptoms are reduced appetite, acid regurgitation, excessive hunger, abdominal bloating, heartburn, a feeling of pressure over the eyes, anxiety in the precordial area, and skin itching. Asthmatic attacks usually begin at night during night sleep. The signs of Asthma are characterised by marked tightness across the chest, anxiety, difficult breathing, and a dry, short cough. Respiration becomes heavy, gasping, laboured, and suffocative, while the facial expression reflects extreme discomfort and apprehension. Irregular heartbeat is present. The patient always demands that doors and windows be left open, and the need for fresh air becomes overwhelming. There is also an increase to move from bed to an open window, and the patient finds it difficult to remain in a lying position. The pulse to them may look frequently irregular.

Asthma commonly develops in childhood and and for a few others, may come from a complex mix of genetic, environmental, and predispositional influences and is often linked to different symptoms. Asthma researchers continue to identify the risk of different models on individual risks of asthma. Although from a different understanding as asthma may be a genetic condition, and other complaints can be developed due to living environment conditions, the clinical methods of preventing long-term asthma remain limited. Airway inflammation in patients causes heightened bronchial sensitivity and intermittent airflow obstruction. Healthcare professionals provide a diagnosis of asthma through different combination of patient history, lung function testing, physical examinations and relevant lab work. There are many different treatments that focus on continuous patient education, regular symptom management treatment, quick relief inhalers, etc(Varraso et al., 2007).

Immune Responses, Respiratory Health and Dietary Fat Intake

Clinical research has examined the relationship between the immune system and dietary fat intake, and it has shown that patients consuming high-fat meals can activate inflammatory responses. Although based on eating high-fat meals has been associated with raised levels of circulating pro-inflammatory neutrophils and cytokines. Therefore, those immune changes seem to be important for respiratory disease and lung function. There were examined such as expression of Toll-like receptor 4 (TLR4) and also higher neutrophil concentration was discovered in the sputum of patients with asthma after following to eat fat-rich foods. Furthermore, the finding shows that immune mechanisms contribute to inflammation in the airways while consuming high-fat foods and obesity resulting from a high-fat diet damages immune cell function(Wypych, Marsland and Ubags, 2017).

The Role of Diet and Nutrients in Asthma Food Control

Researchers have identified the asthma risk and diet, which has focused on both dietary patterns and nutrients. Dietary patterns express habitual food consumption among populations and individuals, taking into consideration the types of foods eaten, frequency, their combinations and diversity. these nutrients are consumed as part of a complex food matrix; this method offers important advantages when using the diet-health relationship, as the effects of nutrients are common. Therefore, the most frequently studied dietary patterns are the Western diet and the Mediterranean diet. The Mediterranean diet emerged in the 1950s and 1960s in seacoast regions of southern Europe, particularly in Greece and Italy, where this was linked directly to a lower mortality from coronary heart disease. The guidelines for the Mediterranean diet highlight meals rich in vegetables, fruits and whole grain cereals. Vitamin D intake during pregnancy has been linked to a reduced risk of childhood wheeze. Despite these findings, researchers have shown that neither vitamin D nor vitamin E intake has been clearly demonstrated to have a consistent effect on the development of childhood asthma(Guilleminault et al., 2017).

Although no particular recommendations to prevent asthma during pregnancy have been discovered and the guidelines for vitamin D should be followed as an existing guideline, and this should be followed by respiratory medicine specialists.

The Beneficial Effects of Fruits and Vegetables

Clinical respiratory researchers have found that consuming fruits and vegetables appears to be lower risk of Asthma. Consuming vitamin C at a dose of 0.2 gr per day has demonstrated modest improvement in Asthma control, and a monthly administration of 60,000IU of vitamin D can significantly reduce the risk of asthma exacerbations among school-aged children. Therefore, vitamin D supplementation in preschool-aged children has not shown significant impact on subjective asthma control and needs further clinical trial research (Guilleminault et al., 2017).

Minerals for Respiratory Health

Some minerals have an important role in respiratory health and particularly in children; higher intake, such as calcium, magnesium and potassium, has been associated with a lower incidence of asthma. Although due to the high number of experimental studies and observations have been inconsistent findings that reduced dietary sodium did not improve bronchial responsiveness in adults with asthma. Magnesium has been viewed as a bronchodilatory benefit in asthma, with low dietary magnesium linked to harm to bronchial smooth muscle function in severe asthma and reduced lung function in children and it reduces lung function in children. further to this, it needs more evidence before firm conclusions can be drawn regarding its dietary recommendations and its therapeutic value. According to experts, Selenium intake has been considered to be lower among individuals with asthma compared with non-asthmatic individuals and in other aspects has been reported to have higher maternal plasma selenium concentrations have been inversely associated with asthma risk in outcome. Other studies show that in large well well-controlled trials, selenium has not shown any benefits with supplementation. One small Swedish study emphasises that older people with severe conditions had intakes of selenium and folate. Due to this, serum calcium levels were reduced, probably due to inadequate vitamin D intake. Furthermore, minerals tend to influence respiratory health, and the evidence does not support supplements(Berthon and Wood, 2015).

Medical Plants for Respiratory Disease Treatment

Medical plants commonly used to treat respiratory disorders indicate a wide range of biological activities, such as antiallergic, immunomodulatory, and anti-inflammatory, antioxidant and also antiviral effects. Although people suffering from respiratory health conditions, including cold, cough, bronchitis, and asthma, are largely on plant-based remedies. The benefits of herbal treatment is that they can relieve symptoms through multiple mechanisms:

• Anti-inflammatory combinations reduced disease severity.
• Antiallergic agents prevent pathogen-induced allergic responses.
• Immunomodulators build up host immune defences.
• Antioxidants counteract free radicals at sites of infection.
• Antimicrobial properties limited the intervention of respiratory pathogens.

The remarkable expertise of plants to provide novel bioactive combinations is reflected in the global pharmaceutical market, where medical plants represents more than half of all medical products in the medical world. In the world, there are approximately 80% of the population relies on traditional medical plants based on traditional therapies for primary health care. The support has also come from the World Health Organisation, which encourages the consolidation of traditional and modern medicine, while supporting the integration of medical plans and also promotes research based on identifying effective and safe plant-derived drugs. Medical plants are well known for demonstrating favourable, toxicological, pharmacological and clinical profiles. Several plants are well documented in ethnomedicine, such as thyme, peppermint, eucalyptus, liquorice root, ginger, and turmeric, and those are supported by clinical and pharmacological evidence(Idreis, 2025).

Thyme

A therapeutically and nutritionally valuable herb that has been used in ancient times for both culinary and medical purposes. Their essential oil and spices of genus Thymus have antibacterial, antispasmodic, expectorant, antifungal and antioxidant properties that contribute to respiratory health.

Peppermint

Belongs to the Lamiaceae family, and it is a fast-growing perennial herb. It is identified as rich in menthol, but its main active component is essential oil. Peppermint oil is widely used in the cosmetic industry, pharmaceutical, antiseptic, analgesic, antipruritic, anti-inflammatory and antimicrobial activities.

Liquorice Root

Continues to play a crucial role in treating respiratory disorders and as a supplement to conventional therapies. Its use is suggested to be beneficial against inflammatory and infectious conditions, and also in neurodegenerative diseases.

Ginger

Is a valuable rhizomatous herb, and it is known for its aromatic People consume as fresh, dried, or as oil and extracts. Ginger was first used in southern Asia, and it is widely used in the kitchen, in medicine to manage gastrointestinal disorders, metabolic diseases, inflammatory ailments and cardiovascular conditions.

Turmeric

Has notable anti-catarrhal properties, and it is used for many treatments, such as treating catarrhal conditions of both lower and upper respiratory tracts. Its expectorant action helps in the removal of mucus from the respiratory passages, and it reduces congestion, combined with respiratory infections(Idreis, 2025).

Indoor Humidity for Asthma Prevention

Knowing that fungal spores and dust mites are extremely significant. The relative humidity is maintained below around 45% at temperatures of 20-22 °C, where under these conditions house dust mites are difficult to survive. Although clinical research indicates that higher humidity levels promote a rapid rise in mite populations, this contrast means reaching a few thousand mites per gram of household dust. Increased indoor humidity also supports fungal growth. It is crucial that approximately 60% of recent identified cases of asthma, which can be linked to house dust mites, can be linked to excessive indoor humidity. Preventing methods focus on increasing ventilation and reducing moisture generated indoors. Ventilation should be easy and flexible, but not fixed, and therefore, all humidity levels should always be controlled at a value that prevents the proliferation of allergenic organisms (Andersen and Korsgaard, 1986).

Short-Chain Fatty Acids (SCFAs)

SCFAs can be picked up from certain foods, including some of the cheeses, butter, cow milk, and these are at a point produced through the fermentation of complex bacterial polysaccharides present in dietary fibres. Short-chain fatty Acids are well known for their inflammatory effects in vitro. Further to this, both Short-Chain Fatty Acids and high fibre diets supplementation have been recognised to reduce inflammation in animal models of diseases, including peanut allergy, airways inflammation peanut allergy, colitis, and allergic airways inflammation. The procedures through which Short-Chain Fatty Acids exert their effect are varied. Short-Chain Fatty Acids can contribute to regulatory T helper cells, and decrease the capability of dendritic cells to activate effector T cells and start the inflammasome.

Studies have indicated that mice fed a high fiber diet point out an increased ratio of Bacteroidetes to Firmicutes in both lungs and gut. Pro-inflammatory is generally considered both Saturated and omega-6 polyunsaturated fatty acids(Wypych, Marsland and Ubags, 2017).

Learn More

For further reading on respiratory health and nutrition, you can visit these trusted resources:

• CDC – Asthma Information
• World Health Organization – Asthma Fact Sheet
• NHS – Asthma Overview and Nutrition Tips

Medical Disclaimer: I am not a medical professional and this article is based on personal research and experience . It is for informational and educational purposes only. Please consult alwats your doctor for advice or a qualified healthcare provider before making any changes to your diet,

References

• Andersen, I. and Korsgaard, J. (1986) ‘Asthma and the indoor environment: Assessment of the health implications of high indoor air humidity’, Environment International, 12(1–4), pp. 121–127. Available at: https://doi.org/10.1016/0160-4120(86)90022-X.
• Berthon, B. and Wood, L. (2015) ‘Nutrition and Respiratory Health—Feature Review’, Nutrients, 7(3), pp. 1618–1643. Available at: https://doi.org/10.3390/nu7031618.
• Guilleminault, L. et al. (2017) ‘Diet and Asthma: Is It Time to Adapt Our Message?’, Nutrients, 9(11), p. 1227. Available at: https://doi.org/10.3390/nu9111227.
• Idreis, N.E.M. (2025) ‘Medical Plants for Respiratory Diseases’, 7 Issue 1 2025, p. 95.
• Varraso, R. et al. (2007) ‘Prospective study of dietary patterns and chronic obstructive pulmonary disease among US women’, The American Journal of Clinical Nutrition, 86(2), pp. 488–495. Available at: https://doi.org/10.1093/ajcn/86.2.488.
• Wypych, T.P., Marsland, B.J. and Ubags, N.D.J. (2017) ‘The Impact of Diet on Immunity and Respiratory Diseases’, Annals of the American Thoracic Society, 14(Supplement_5), pp. S339–S347. Available at: https://doi.org/10.1513/AnnalsATS.201703-255AW.

Chronic Inflammation: Lifestyle-Based Management, Causes, and Effects

Introduction

In medical conversation is a term that is approximately defined and often popularised, dating back to Roman times. Inflammation's meaning can shift depending on what clinical situation and who is using it. It is viewed as something malfunctional or harmful, and it is frequently forgotten that inflammation is crucial to survival and health. Inflammation is an old word that comes from the Latin “inflamare” and means to set alight or to burn. It is important to mention that it is meant to ignite fast and to defend the body from any possible threats and to subside once the threat has passed. In the last few decades, advances in molecular biology have expanded this understanding, showing both processes of involving immune and non-immune cells, triggered by factors such as toxins, infections, cellular, and radiation, with the main goal of restoring balance and normal function within the body (Oronsky, Caroen and Reid, 2022).

Chronic Inflammation that matters today

Looking at short-term rises in inflammation is important for survival in response to infection and injury, providing evidence that shows different social, environmental, and lifestyle influences can contribute to persistent systemic chronic inflammation SCI. This persistent inflammatory state contributes to the development of multiple circumstances that account for much of the global burden of death also disability, such as cancer, cardiovascular disease, chronic kidney disease, non-alcoholic fatty liver disease, as well as autoimmune and neurodegenerative disorders. In this article, the biological mechanisms operating at multiple levels that support systematic chronic inflammation and examined components that increase risk, including infections, unhealthy dietary patterns, exposure to industrial and environmental pollutants, and psychological stress. It also mentioned as suggestions of early prevention, detection, and management of SCI(Furman et al., 2019).

Immunosenescence and ageing of bone marrow determined by hematopoietic stem cells. Bone marrow is the main location of blood cell formation, and it represents a highly dynamic place in skeletal cells, stromal elements and hematopoietic populations. Based on the study, older bone marrow is the accumulation of senescent mesenchymal stromal cells. These aged stromal cells show molecular hallmarks of senescence, such as genomic instability, excessive reactive oxygen species production, and raised expression of senescence-associated secretory phenotype (SASP).

The inflammatory environment created by SASP disrupts stromal cells, informing amends gene expression in surrounding healthy mesenchymal cells. Therefore, ageing of the bone marrow is strongly associated with haematological abnormalities, including increased rates of anaemia, and can weaken adaptive immune responses and larger the risk of myelodysplastic and myeloproliferative diseases. Functional remodelling of bone tissue further worsens hematopoietic decline. As we get older, hematopoietically active red marrow is progressively replaced by adipose tissue, which creates yellow marrow that restricts blood cell production. Older hematopoietic stem cells show an increased tendency to generate myeloid cells while losing effectiveness in supporting T- and B-lymphocyte development, leading decrease in lymphoid progenitors.

The number of hematopoietic stem cells can rise with age, but others, such as clonogenic potential and self-renewal, functional quality, and clonogenic potential, decline distinctlySCI(Furman et al., 2019).

T-cell immune competence and Thymic aging

The thymus is crucial for the generation of immunocompetent T lymphocytes and the foundation of central immune tolerance. Thymocyte output and thymic hormone production in humans peak early in life nd gradually decline thereafter(Li et al., 2023). Studies in aged mice have demonstrated oxidant stress within the thymus and DNA damage, such as increased phosphorylation of histone H2AX and increased recruitment of p53. These molecules encourage cellular senescence and support the concept that the ageing thymus becomes gradually improved with senescent cells.

Chronic inflammation as a driver of disease

Chronic inflammation often occurs without obvious symptoms, and it plays a major role in the progression and onset of many long-term illnesses. It can affect both lifespan and quality of life. Due to many external and internal factors contributing to the maintenance of this inflammatory state, including tobacco use, advancing age, dietary habitsphysical inactivity, excess body weight, psychological stress, hormonal changes, and disrupted wake and sleep cycles.

Furthermore, obesity is characterised by an inflammatory environment guided by immune cell infiltration of adipose tissue and strengthened cytokine release, procedures that support insulin resistance and other related metabolic disorders. Among adaptive immune mechanisms and innate with adipose signalling molecules play a crucial role in sustaining this obesity associated inflammatory state(Chavda, Feehan and Apostolopoulos, 2024).

Mediterranean-style eating, inflammation, and vascular health inflammation

The Mediterranean dietary model is described by Ancel Keys in the mid twentieth century, and it is characterised by a predominantly plant-based based that highlights extra virgin olive oil, fruit and vegetables, legumes, whole grains, low-fat dairy products, and fish and a small amount of red meat(Schwingshackl and Hoffmann, 2014). According to experts, Mediterranean diets lower several cardiovascular risk factors in primary prevention settings(Schwingshackl and Hoffmann, 2014).

Anti-inflammatory properties of curcumin and Antioxidant

Curcumin is a bioactive polyphenolic combination derived from turmeric and from the preparations of traditional herbal. A substantial body of research shows that curcumin exhibits a wide variety of beneficial biological activities, especially in regulating oxidative stress and inflammatory responses, emphasising its therapeutic potential in preclinical settings(Lu and Yen, 2015). Various studies have shown that tea catechins, mainly present in green tea and other dietary sources, contain multiple bioactive combinations with notable chemopreventive effects. Along with these, epigallocatechin gallate is well-known as one of the most effective and potent catechins.

Carotenoids are widely known for their promoting quality and their role in supporting human well-being, while astaxanthin, on the other hand, is a structurally distinct carotenoid that has been well studied for its diverse biological activities(Lu and Yen, 2015).

Diet, Its Role in Inflammation and Chronic Disease Risk

Multiple physiological and collaborative spaces contribute to an individual’s inflammatory status and vulnerability to chronic diseases, with dietary intake representing one of the most important modified influences. The evidence shows that supporting this relationship shows that adherence to the Mediterranean dietary pattern is combined with a reduction in inflammatory markers, whereas a diet rich in added sugar or in trans fats is linked directly to increased inflammatory response. Furthermore, high consumption of saturated fats has been elevated and correlated inflammatory biomarkers, especially among those who are overweight.

Dairy foods play an important role in healthy eating patterns, such as the Dietary Approaches to Stop Hypertension diet. According to the DGA, individuals age nine and older are recommended to consume three cups or equivalents of low-fat or fat free dairy products daily. Consuming dairy products is important because they are rich in nutrients, such as vitamin D, calcium, riboflavin, vitamin B12, protein, zinc, potassium, choline, magnesium and also selenium.

Dairy has been identified as one of the main dietary sources of three nutrients, including calcium, vitamin D and potassium. Consuming dairy regularly has been associated with positive health results, which will result in reducing the risk of cardiovascular disease, type 2 diabetes, supporting bone health and metabolic syndrome. Additionally, dairy products are recognised as pro-inflammatory foods, and that is in saturated fat and lactose content. As a result, the importance of consuming dairy for achieving nutritional adequacy, and in combination with reducing the risk of chronic disease, the article aims to provide an updated systematic review of the inflammation role and its chronic disease (Nieman, Anderson and Cifelli, 2021).

Official Health & Medical Resources

NHS (UK National Health Service)

• Mediterranean diet patient info (NHS PDF guide) — practical overview of the diet and health benefits: Mediterranean diet — NHS diet guide
• Eating for a healthy heart (NHS adult diet advice including Mediterranean pattern): Mediterranean style eating for heart health — NHS PDF

WHO (World Health Organization)
General info on healthy diets and dietary patterns — use this WHO nutrition resource as a high-authority reference:

Harvard Health Publishing (Harvard Medical School)
Harvard Health overview on Mediterranean diet and inflammation/cardiovascular health — recommended health article:

NIH (National Institutes of Health)
NIH PubMed Central review of Mediterranean diet impacts on endothelial function – evidence for improvements in endothelial health and inflammation: Mediterranean diet and endothelial function review — NIH PMC article

PubMed Systematic Reviews (not individual studies)

• PubMed meta-analysis of Mediterranean diet effects on inflammation and endothelial function: Mediterranean diet — systematic review & meta analysis (PubMed)
• Another PubMed systematic meta-analysis on Mediterranean diet and endothelial function: Mediterranean diet & endothelial function meta analysis — PubMed (Ir J Med Sci)

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Medical Disclaimer: I am not a medical professional and this article is based on personal research and experience . It is for informational and educational purposes only. Please consult alwats your doctor for advice or a qualified healthcare provider before making any changes to your diet.

References :

• Chavda, V.P., Feehan, J. and Apostolopoulos, V. (2024) ‘Inflammation: The Cause of All Diseases’, Cells, 13(22), p. 1906. Available at: https://doi.org/10.3390/cells13221906.
• Furman, D. et al. (2019) ‘Chronic inflammation in the etiology of disease across the life span’, Nature Medicine, 25(12), pp. 1822–1832. Available at: https://doi.org/10.1038/s41591-019-0675-0.
• Li, X. et al. (2023) ‘Inflammation and aging: signaling pathways and intervention therapies’, Signal Transduction and Targeted Therapy, 8(1), p. 239. Available at: https://doi.org/10.1038/s41392-023-01502-8.
• Lu, C.-C. and Yen, G.-C. (2015) ‘Antioxidative and anti-inflammatory activity of functional foods’, Current Opinion in Food Science, 2, pp. 1–8. Available at: https://doi.org/10.1016/j.cofs.2014.11.002.
• Nieman, K.M., Anderson, B.D. and Cifelli, C.J. (2021) ‘The Effects of Dairy Product and Dairy Protein Intake on Inflammation: A Systematic Review of the Literature’, Journal of the American College of Nutrition, 40(6), pp. 571–582. Available at: https://doi.org/10.1080/07315724.2020.1800532.
• Oronsky, B., Caroen, S. and Reid, T. (2022) ‘What Exactly Is Inflammation (and What Is It Not?)’, International Journal of Molecular Sciences, 23(23), p. 14905. Available at: https://doi.org/10.3390/ijms232314905.
• Schwingshackl, L. and Hoffmann, G. (2014) ‘Mediterranean dietary pattern, inflammation and endothelial function: A systematic review and meta-analysis of intervention trials’, Nutrition, Metabolism and Cardiovascular Diseases, 24(9), pp. 929–939. Available at: https://doi.org/10.1016/j.numecd.2014.03.003.

pH Regulation, Dietary Influences, and Health Evidence

Maintaining the body’s acid-base balance is an important aspect of metabolic health. There could be a small change in body fluid pH that can affect cellular functions, enzymatic reactions and overall homeostasis. Body fluid indicates the concentration of hydrogen ions (H+), which is generated from different metabolic processes. Organic acids, including β-hydroxybutyric acid and lactic acid, are generated in tissues such as the liver, adipose tissue, and skeletal muscle. These acids separate into protons and conjugate bases, and that leads to acidification of intracellular and extracellular environments. The human body uses many buffering systems and transport mechanisms.

The major contributions of the buffering system involve the proton-proton binding, bicarbonate stems and phosphoric acid buffering, and this stabilises pH by neutralising excess protons. Cells use special transporters for moving extra protons out of the cell into the space around them, including monocarboxylate transporter MCTs and Na+/H+ exchangers NHEs. These procedures allow the cells to keep the cells of internal pH at a normal level around 7.03-7.46, and that is crucial for healthy metabolism. Therefore, when cells are affected by too much acid, the problem arises with the transporter, and normally, the fluid around the cells becomes more acidic.

According to experts, a drop in interstitial fluid pH, the fluid between cells, may contribute to metabolic problems, for example, in insulin resistance, obesity and type 2 diabetes. Furthermore, food can improve proton transport and also support metabolic health (Aoi et al., 2020).

Understanding pH

Alkaline acid has to do with pH. It is considered acidic when pH is low (between 0 and 6), and high in pH scale (from 8 to 14) is considered alkaline, and 7 is considered neutral. Understanding food better shows that some foods contain alkaline and others are acidic. For example, citrus fruits such as lemon, grapefruit, and oranges are acidic foods. The acidic food we consume over time can change the pH level in our blood. The reaction occurs continuously through our breath, with a chemical signal, through the brain, and the kidneys work hard to regulate pH through large and small adjustments (Henry, 2019). According to studies, the more you consume acidic food, the harder your body will work, and this can have long-term effects.

The concept of Alkaline and Acid comes from human practice. The meaning of acid comes from the Latin word acere, which means sour. Acid tests have a sour taste, observed from foods like sour milk, lemon juice, and vinegar. The word Alkaline is an Arabic word al-qily, which refers to burnt plant ashes. The terms acids and bases began in 1776 with Antonio Lavoisier. In 1838, Justus von Liebig declared acids as substances that contain hydrogen. Later, Sørensen, a Danish scientist, introduced the concept of pH at the Carlsberg Laboratory, updated in 1924 based on modern electrochemical methods.

Ancient Indian texts like Hatha Yoga Pradipika, Shiv Samhita, and Gheranda Samhita studied food effects on the body and classified it as sattvic (pure), rajasic (stimulating), and tamasic (heavy/impure). Charak (~200 AD) in Charak Samhita classified foods as light or heavy; light foods were recommended for good health. E.V. McCollum (Johns Hopkins) recommended more alkaline-forming foods like vegetables, grains, milk, fruits, butter, and cheese. Blood pH should be between 7.35 and 7.45. Small pH changes affect organisms, like oceans dropping from 8.2 to 8.1 due to CO₂, harming coral reefs. Soil pH 6–7 provides optimal nutrients; extremes lead to nutrient imbalances.

As we age, kidney function declines, and modern diets can lead to metabolic acidosis. Blood pH below 7.35 indicates acidosis; above is alkalosis. Most enzymes function within a specific pH range; deviations can impair their activity (N Suthar, 2024).

Research Evidence on Urine pH and Bone Health

Modern diets may cause slightly acidic urine (~pH 6). Some promote alkaline diets to sell products claiming balance of acid and base levels. Acid load can be measured by urine pH or calculating total acid excretion, including sulfates, chlorides, phosphates, minus minerals like magnesium, calcium, potassium, and sodium. Traditional urine pH measurements may be inaccurate due to bacterial changes.

Better measurements consider post-digestion urine, reflecting actual diet. Lab tests analyzed urine for pH, creatinine, calcium, phosphate, and other ions. Results show low urine pH or high acid levels do not increase osteoporosis risk. A single urine test cannot indicate long-term diet effects. More research is needed to assess diet effects on bone health and the validity of alkaline diets (Fenton et al., 2010).

Acid Ash Hypothesis and Bone Strength

The acid ash hypothesis claims high-protein diets harm bones due to acid load. Excess acid is neutralized by bicarbonate from bone minerals, possibly weakening bones over time. Some studies suggested acid-forming foods (dairy, grains) increase urinary calcium and bone calcium depletion. However, reviews questioned this, considering biochemical mechanisms, protein influence, phosphate, calcium balance, and validity of the theory. Evidence is weak on dietary acid load causing osteoarthritis.

A systematic review analyzed whether high acid diets contribute to osteoporosis, reviewing human interventional studies, long-term observations, and lab studies. Researchers examined whether reducing dietary acid load could reduce risk or slow osteoporosis progression (Fenton et al., 2011).

Meta-Analysis of pH Methods

Experts explored calcium excretion, acid load, and bone health through meta-analyses of RCTs and RCOs. When no meta-analyses existed, individual studies were reviewed. Another meta-analysis examined effects of alkaline treatments or low acid diets on bone resorption markers (serum CTX, deoxypyridinoline crosslinks, urinary N telopeptide) using standardised mean differences with Cochrane RevMan5. Random effect models were applied if heterogeneity p-value was 0.05–0.5. Sensitivity analysis excluded urine CTX due to biological fluctuations. Lab studies on bone mineral loss at different pH levels assessed acid impact on bone health within normal physiological pH (Fenton et al., 2011).

Food and pH Balance

Food does not change blood pH directly; the body manages acidity and minerals. Below is a guide to alkaline and acidic foods:

Low Acidic / Alkaline Foods

• Yoghurt and fermented foods
• Black tea
• Butter in moderation
• Brown rice and beans
• Natural honey (unprocessed)

Middle or Moderate Acidic Foods

• Tuna, Salmon, Tilapia, Mackerel
• Whole wheat and rye bread
• Cottage Cheese, hard Cheese, Cream cheese
• Ketchup, Mustard, Mayonnaise
• Olives, Garlic, Pomegranates
• Pistachios, Eggs, Corn

Highly Acidic Foods

• Chocolate, ice cream, milkshakes
• Soda, liquor, beer
• White sugar and pastries
• Espresso and strong coffee
• Cheese
• Pork (bacon, chops, ribs)
• Beef

Practical Tips for Getting Started

• Gradually replace processed foods with vegetables, fruits, and whole grains.
• Limit sugary drinks; opt for water or herbal teas.
• Balance meals: include a grain, vegetables, and plant-based protein.
• Experiment with alkaline-friendly recipes like quinoa salads or brown rice bowls.

Frequently Asked Questions (FAQs)

Does an alkaline diet change blood pH?

Diet can affect urine pH and mineral balance, which influences how the body manages acidity. No — blood pH is tightly regulated.

Are all acidic foods bad?

No, foods like fish or pomegranates provide valuable nutrients. Moderation and balance are key.

What is the easiest alkaline food to start with?

Brown rice, beans, and seasonal vegetables are simple, affordable, and easy to prepare.

Further Reading & Internal Links

Explore related guides: Asthma and Macrobiotics, What is Healthy Food?, Foods to Avoid for Asthma.

Medical Disclaimer

I am not a medical professional. This article is for informational and educational purposes only. Please consult your doctor or a qualified healthcare professional before making changes to your diet, exercise, or lifestyle.

External Reading & Resources

• Dietary Acid-Base Balance and Bone Health – NCBI
• Alkaline Diet: What It Is, Benefits, and Risks – Healthline
• Foods That Affect Your pH Levels – Medical News Today
• Body Fluid pH Regulation and Metabolism – ScienceDirect
• Nutrition for Bone Health – NIH Osteoporosis and Related Bone Diseases
• Effect of Acid-Base Diet on Urinary pH and Bone Health – NCBI
• Alkaline Diets and Health – British Nutrition Foundation

References

• Aoi, W. et al. (2020) ‘Body Fluid pH Balance in Metabolic Health and Possible Benefits of Dietary Alkaline Foods’, eFood, 1(1), pp. 12–23. Available at: https://doi.org/10.2991/efood.k.190924.001
• Fenton, T.R. et al. (2010) ‘Low urine pH and acid excretion do not predict bone fractures or the loss of bone mineral density: a prospective cohort study’, BMC Musculoskeletal Disorders, 11(1), p. 88. Available at: https://doi.org/10.1186/1471-2474-11-88
• Fenton, T.R. et al. (2011) ‘Causal assessment of dietary acid load and bone disease: a systematic review & meta-analysis applying Hill’s epidemiologic criteria for causality’, Nutrition Journal, 10(1), p. 41. Available at: https://doi.org/10.1186/1475-2891-10-41
• Henry, B. (2019) 30 Day Alkaline Diet Challenge.
• N Suthar, N. (2024) ‘ALKALINE DIET AND HEALTH-A BRIEF REVIEW’.

Juices and Nutrition that Supporting Wellness and Immunity

How Food and Nutrition May Support Respiratory Health

Managing nutrition and hydration is crucial for people to prevent diseases and live a well-being life. In modern worlds, many researchers consistently emphasise the importance of nutrient-rich diets to support immune health and overall well-being. Among the different approaches to functional nutrition, juice therapy, the master plan of fresh vegetable juices and selected herbal teas has gained increasing attention from people. Offering these methods that combine a balanced diet and mindful hydration can strengthen immunity, provide a variety of rich minerals, vitamins and support detoxification, digestion and absorption. Regarding evidence-based insights into nutrition and immunity, see the Harvard T.H. Chan School of Public Health – Nutrition Source.

Beetroot Juice

Beetroot juice is well-known in health and nutrition research because it is very rich in inorganic nitrates, NO3, as well as bioactive elements such as polyphenols and betalains. Although these nutrients are converted into nitrites and then into nitric oxide through the well-recorded nitrate-nitrite-NO pathway, a procedure that can take place even under low oxygen or acidic conditions and is frequently seen in physical activities. Nitric oxide plays a crucial role in regulating blood vessel function, regulating oxidant balance, and influencing muscle contraction, supporting mitochondrial function efficiently, making as promising nutritional option for increasing different roles of physical health. As mentioned, beetroot juice can decrease blood pressure and also improve endothelial function. Researchers have extended studies, such as illustrating potential benefits for mitochondrial activity, cerebral blood flow, muscle function, and cognitive performance. In addition, the benefits of beetroot juice are not only due to nitrate content, but also factors like oral microbiota health, age, diet and metabolic staus the effect how efficiently nitrate is converted into nitric oxide(Lee et al., 2026).

Pomegranate Juice

Pomegranate (Punica granatum) is a long-cultivated fruit that belongs to the Punicaceae family and is frequently called “the miracle fruit” due to eating its seeds as food, juice and its functional products. Modern clinical research and pharmacology have highlighted the broad ranging medicional properties of pomegranate itself and its juice. Pomegranate is strongly considered to be rich in dietary polyphenols with strong antioxidant properties. It has various health benefits, including managing diabetes, obesity and inflammation. The factors of polyphenols in pomegranate juice include anthocyanins, tannins, and flavonoids, and it is explored among chemical composition, biological effects and metabolism. It has significant advantages for the production of high-quality juice (Basu and Penugonda, 2009).

Wheatgrass Juice

Modern research identifies herbs as valuable sources of bioactive compounds. Wheatgrass, as young shoots of Triticum aestivum that belong to the family Gramineae, is an annual grass native to Southwest Asia and the Mediterranean, and now wheatgrass is cultivated worldwide. Wheatgrass is rich in essential minerals such as magnesium, iron, phosphorus, manganese, zinc and copper. Wheatgrass has tocopherols, providing a high amount of vitamin It has 70% chlorophyl, a molecule that is almost similar to haemoglobin. It contributes to metabolism, reduces acidity, restores blood alkalinity and also supports healthy cellular function by acting as a detoxifying agent. It can be consumed as a powdered extract or fresh, providing chlorophyll, 17 amino acids such as 8 essential, minerals, vitamins and proteins. Although it was used traditionally to manage health conditions. It has benefits for high blood pressure, pancreas health, anaemia, skin issues, constipation and asthma. Nutritional studies regularly show wheatgrass to be rich in magnesium, chromium, zinc, selenium, and antioxidants such as vitamin E and C, in anti-anaemic factors, such as vitamin B12, folic acid, iron, and pyridoxine, including proteins and amino acids. Scientists has discovered that it demonstrates its antioxidant capacity anti cancer both in vivo and vitro (A pilot study on wheat grass juice for its phytochemical, nutritional and therapeutic potential on chronic diseases., 2026).

The Importance of Fruits and Their Natural Benefits

Fruits are not only seen as nutritious food but also have medical properties. Fruits can help to prevent certain health conditions, especially those that are related to the stomach. Consuming regularly may help to maintain good health and prevent illness. They are both rich in vitamins and minerals, as well as beneficial and tasty, and support detoxification that helps to eliminate harmful substances. Fruis consists vitamins, water, sugar, minerals, and protein, fats, fibre, and aromatic elements that contribute to their pleasant aroma. Although when we consume fruits, our body absorbs 5-15% sugar efficiently. The carbohydrates in fruits are transformed into sugars with the help of sunlight. Fruits contribute to reducing blood acidity and relieve the workload on organs such as the liver, lungs, and kidneys. Several fruits are low in fat and protein and are digested quickly compared to other foods. Fruit skin is a rich source of fibre and helps in cleansing the stomach. It is highly recommended not to peel fruits but to consume them with the skin. There are different types of fruits, and some of them with very thick skins have higher minerals and vitamins just beneath the skin (Chan and Giovannucci, 2001).

Importance of Regular Elimination

There are many discussions that the nutrition process is overlooked in the body elimination process, and often it is described that bowel movements and regular urination to fully empty the bladder are important for clearing waste products and developing kidney and digestive health. For further recommendations of a deeper overview of digestive health strategies, visit WebMD Digestive Health.

Recommendation for Using Herbal Teas

There are many herbal teas from different regions that can support different functions of the body. The herbal teas provide bioactive plant compounds with detoxification benefits, as well as antioxidant and anti-inflammatory properties. The most recommended options are:

• Cranesbill Tea: Many people use it to promote cleansing, and it supports kidney function.
• Sage Tea: Widely known for soothing the throat, decreasing oxidative stress, and providing anti-inflammatory and antioxidant benefits.
• Marigold (Calendula) Tea: Valued for skin-supportive effects and immune-enhancing properties.

For more details, see Healthline’s Guide to Herbal Teas.

Highly recommended is that juice therapy is followed as a short-term regimen. During this crucial period for transformation of wellbeing and body, it is best to avoid solid food. This allows the digestive system to rest while delivering essential nutrients.

• Consume up to 500ml of juice per day in small portions.
• Encourage salivary digestive activity by drinking slowly, using a spoon.
• Maintain hydration with water and herbal teas throughout the day.

This attentive approach improves digestion and nutrient bioavailability, making it more effective than consuming juices quickly.

Juice Ingredients and Preparation

A day-to-day therapeutic blend includes:

• 300g beetroot
• 100g carrots
• 100g celeriac
• 30g black radish
• 1 small potato

This mixture creates a nutrient-dense juice rich in minerals and antioxidants.

Preparation Instructions for the Juice

1. Blend all ingredients in a food processor until smooth.
2. Drink slowly, using a spoon, to increase enzymatic breakdown.
3. Complement intake with herbal teas for hydration throughout the day.

Sage Tea Preparation

1. Steep sage herbs in hot water for about 10 minutes.
2. Boil the herbs in 500ml water for 3 minutes, then let it cool.
3. Add one teaspoon of peppermint and balm (Melissa officinalis) and steep for an additional 9–10 minutes.

This combination enhances both flavor and therapeutic effects.

Supports antioxidant balance, increases immune activity, and reduces inflammation

• Deficiency increases susceptibility to respiratory infections such as pneumonia.
• Studies indicate that low vitamin C levels contribute to increased COVID-19 risk.
• Adjusts multiple immune cells and promotes production of antimicrobial proteins.
• Constant supplementation is more effective than high single doses.

Zinc

• Essential for immune cell communication, oxidative balance, and antiviral defence.
• Inhibits coronavirus replication and improves vaccine response.
• Deficiency can increase viral variation rates and disease severity.
• Proper supplementation strengthens immune markers.

Amino Acids and Fatty Acids

• Amino acids serve as building blocks for antibodies and cytokines.
• Omega-3 fatty acids reduce inflammation and may benefit COVID-19 patients.

Vitamin C

Vitamin C plays an important role in the synthesis of hormones, including catecholamines (example, norepinephrine) and amidated peptides (e.g., vasopressin), which are crucial for cardiovascular responses during serious infections. Recent research among its classic functions has revealed that vitamin C regulate cell signalling and gene transcription by modulating epigenetic marks and transcription factor activity. Moreover, proteins such as asparagine and prolyl hydroxylases that contributes downregulate transcription component hypoxia-inducible factor-1α (HIF-1α), need vitamin C as a cofactor. Vitamin C also contributes to DNA and histone methylation by assisting enzymes that hydroxylate these epigenetic marks. It also contributes to leukocyte function and barrier integrity in the immune system. The skin, which provides a main barrier against pathogens, consist high concentrations of vitamin C, especially in the epidermis. Vitamin C is actively transported into skin cells through SVCT1 and SVCT2 transporters, highlighting its importance in skin health. Furthermore, vitamin C may stimulate collagen gene expression, and it also supports tissue repair and integrity (Carr and Maggini, 2017).

The Benefits of Juice Therapy

Consuming a variety of vegetables such as potatoes, beetroot, carrots, celeriac, and black radish provides a nutrient profile that strongly supports digestive, cardiovascular, and immune health. Beetroot juice has been scientifically proven to lower blood pressure and increase immune resilience (Claudia et al., 2019; Kapil et al., 2015). This combination balances minerals, vitamins, and antioxidants, promoting overall wellness and detoxification.

Microelements and Immune Support

Immune resilience depends on vitamins, trace elements, amino acids, and fatty acids. Deficiencies can decrease immune defenses and increase vulnerability to infections. Correcting insufficiency often restores immune capability (Calder, 2022).

Immunity, Resistance, and the Human Immune System

The immune system can be divided into two categories: Passive Immunity and Active Immunity.

• Passive immunity: External antibodies such as maternal antibodies, immunotherapy.
• Active immunity: Long-lasting immunity developed after exposure to infections or vaccines (Singh et al., 2023).

Natural Immunity

• Physical barriers: Skin, mucosal linings.
• Physiological defenses: Stomach acid, saliva, tears.
• Cellular defenses: Neutrophils, macrophages, NK cells.
• Supplement proteins: 30 blood proteins that destroy pathogens (Chaplin, 2010; Danilova, 2015; Marshall et al., 2018).

Acquired Immunity

• Develops after birth via pathogen exposure or vaccination.
• Requires B cells (antibody production) and T cells (helper, cytotoxic, suppressor).
• Antibody classes:
• IgA: Protects mucosal surfaces.
• IgD: Activates B cells.
• IgE: Defends against parasites, pesticides, and allergens.
• IgG: Provides long-term immunity.
• IgM: Removes bacteria in the body (Schroeder & Cavacini, 2010; Hachimura et al., 2018).

Together, the immune system forms a highly organized defense mechanism protecting health throughout life.

Conclusion

Combining herbal teas and juice therapy into a balanced nutrition plan creates a rich spectrum of vitamins, minerals, and plant compounds that improve wellness and immune resilience. These approaches complement evidence-based medical care. Individuals considering fasting or juice therapy should consult healthcare professionals, especially if underlying medical conditions exist. Good Health!

Medical Disclaimer: I am not a medical professional and this article is based on personal research and experience . It is for informational and educational purposes only. Please consult alwats your doctor for advice or a qualified healthcare provider before making any changes to your diet.

References

• A pilot study on wheat grass juice for its phytochemical, nutritional and therapeutic potential on chronic diseases.
• Basu, A. and Penugonda, K. (2009) Pomegranate juice: a heart-healthy fruit juice
• Carr, A. and Maggini, S. (2017) Vitamin C and Immune Function
• Chan, J.M. and Giovannucci, E.L. (2001) Diet: Vegetables, Fruits, Associated Micronutrients, and Risk of Prostate Cancer
• Lee, E. et al. (2026) Beetroot Juice and Exercise for Clinical Health and Athletic Performance