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“Let food be thy medicine, and medicine be thy food.”— Attributed to Hippocrates🌿“Leave your drugs in the chemist's pot if you can heal the patient with food.”— Attributed to Hippocrates🌿“The doctor of the future will give no medicine, but will instruct his patient in the care of the human frame, in diet and in the cause and prevention of disease.”— Thomas A. Edison🌿“No illness which can be treated by diet should be treated by any other means.”— Maimonides (commonly attributed)🌿“When diet is wrong, medicine is of no use; when diet is correct, medicine is of no need.”— Ayurvedic proverb🌿“Medicine and food share a common origin.”— Traditional Chinese medicine saying🌿“Food is medicine is not only an idea whose time has come; it is absolutely essential.”— Dr Dariush Mozaffarian🌿“Nature is the true healer. The physician is only nature's assistant.”— Attributed to Hippocrates🌿“All that man needs for health and healing has been provided in nature; the challenge of science is to find it.”— Attributed to Paracelsus🌿“Vitality and beauty are gifts of Nature for those who live according to its laws.”— Leonardo da Vinci🌿“The art of medicine consists in amusing the patient while nature cures the disease.”— Attributed to Voltaire🌿“An ounce of prevention is worth a pound of cure.”— Benjamin Franklin🌿“If we could give every individual the right amount of nourishment and exercise — not too little and not too much — we would have found the safest way to health.”— Attributed to Hippocrates🌿“Eating alone will not keep a man well; he must also take exercise.”— Hippocrates, On Regimen🌿“Health is created and lived by people within the settings of their everyday life.”— WHO Ottawa Charter for Health Promotion🌿“The good physician treats the disease; the great physician treats the patient who has the disease.”— Sir William Osler🌿“Health is a state of complete physical, mental and social well-being — not merely the absence of disease.”— WHO Constitution🌿“Tell me what you eat, and I will tell you what you are.”— Jean Anthelme Brillat-Savarin🌿“Eat food. Not too much. Mostly plants.”— Michael Pollan🌿“Do not eat anything your great-grandmother would not recognise as food.”— Michael Pollan🌿“Diet-related diseases produce crushing health and economic burdens.”— Dr Dariush Mozaffarian🌿“One of the first duties of the physician is to educate the masses not to take medicine.”— Sir William Osler🌿“Good food is a right, not a privilege.”— Alice Waters🌿“Let food be thy medicine, and medicine be thy food.”— Attributed to Hippocrates🌿“Leave your drugs in the chemist's pot if you can heal the patient with food.”— Attributed to Hippocrates🌿“The doctor of the future will give no medicine, but will instruct his patient in the care of the human frame, in diet and in the cause and prevention of disease.”— Thomas A. Edison🌿“No illness which can be treated by diet should be treated by any other means.”— Maimonides (commonly attributed)🌿“When diet is wrong, medicine is of no use; when diet is correct, medicine is of no need.”— Ayurvedic proverb🌿“Medicine and food share a common origin.”— Traditional Chinese medicine saying🌿“Food is medicine is not only an idea whose time has come; it is absolutely essential.”— Dr Dariush Mozaffarian🌿“Nature is the true healer. The physician is only nature's assistant.”— Attributed to Hippocrates🌿“All that man needs for health and healing has been provided in nature; the challenge of science is to find it.”— Attributed to Paracelsus🌿“Vitality and beauty are gifts of Nature for those who live according to its laws.”— Leonardo da Vinci🌿“The art of medicine consists in amusing the patient while nature cures the disease.”— Attributed to Voltaire🌿“An ounce of prevention is worth a pound of cure.”— Benjamin Franklin🌿“If we could give every individual the right amount of nourishment and exercise — not too little and not too much — we would have found the safest way to health.”— Attributed to Hippocrates🌿“Eating alone will not keep a man well; he must also take exercise.”— Hippocrates, On Regimen🌿“Health is created and lived by people within the settings of their everyday life.”— WHO Ottawa Charter for Health Promotion🌿“The good physician treats the disease; the great physician treats the patient who has the disease.”— Sir William Osler🌿“Health is a state of complete physical, mental and social well-being — not merely the absence of disease.”— WHO Constitution🌿“Tell me what you eat, and I will tell you what you are.”— Jean Anthelme Brillat-Savarin🌿“Eat food. Not too much. Mostly plants.”— Michael Pollan🌿“Do not eat anything your great-grandmother would not recognise as food.”— Michael Pollan🌿“Diet-related diseases produce crushing health and economic burdens.”— Dr Dariush Mozaffarian🌿“One of the first duties of the physician is to educate the masses not to take medicine.”— Sir William Osler🌿“Good food is a right, not a privilege.”— Alice Waters🌿
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Age-related corrections

🧂 Zinc, Selenium and Iodine: Trace Minerals in India

Zinc, selenium and iodine are needed in tiny amounts yet each anchors a body system: immune function and skin, thyroid conversion and antioxidant enzymes, and thyroid hormone itself. This guide explains who runs low in India, the Brazil nut and kelp cautions, why iodised salt still matters, and how long-term zinc can push copper out of balance.

By the Farmicine editorial team·Reviewed for claims compliance·4 min read· 20s 30s 40s 50s 60s
In this guideZinc: why does it matter and who runs low?Selenium: Brazil nuts, Indian soils and the thyroidIodine: has iodised salt solved the problem?Copper: the balance zinc can upsetWhen to see a doctor

Zinc, selenium and iodine are needed in tiny amounts — milligrams and micrograms — yet each sits at the centre of a body system: zinc for immune function, skin and the sense of taste; selenium for the thyroid and the body's antioxidant enzymes; iodine for thyroid hormone itself. Zinc deficiency symptoms in India, patchy selenium in Indian soils, and the ongoing story of iodised salt make these three worth understanding, along with copper, the mineral that zinc can quietly push out of balance.

Zinc: why does it matter and who runs low?

Zinc is part of several hundred enzymes. It supports normal immune function (immune cells divide rapidly and need it), wound repair, skin integrity, the sense of taste and smell, and the production of testosterone and insulin. Common signs of low zinc include frequent colds that linger, cuts that are slow to close, white spots on the nails, acne or dry, flaky skin, hair shedding, reduced appetite and a dulled sense of taste — a classic early sign.

Vegetarian Indian diets are at particular risk because the best zinc sources are animal foods, and the phytates in unsoaked grains and pulses bind zinc in the gut. Food sources include pumpkin seeds, sesame and til chikki, cashews, chana and rajma, whole grains, paneer and curd, eggs, and for non-vegetarians, meat, shellfish and fish. Soaking, sprouting and fermenting markedly improve zinc availability from plant foods, and eating zinc-rich plants alongside a protein improves uptake. Farmicine lists zinc under Immune Dysregulation (B8), and pumpkin seeds and cashews appear on the food list for that pattern.

Serum zinc is an imperfect test — it falls with inflammation and after meals — so clinicians weigh diet and symptoms. Short courses of zinc are commonly used during a cold, and zinc appears in many Indian formulations; long-term high-dose zinc is where copper balance becomes a concern, discussed below.

Selenium: Brazil nuts, Indian soils and the thyroid

Selenium is built into the enzymes that convert thyroid hormone (T4) into its active form (T3) and into glutathione peroxidase, a central antioxidant enzyme. Low selenium is associated with sluggish thyroid conversion, weaker immune responses and, in parts of the world with very low soil selenium, specific heart and joint conditions.

How much selenium a plant contains depends almost entirely on the soil it grew in, and Indian soils vary enormously — some regions are low, while parts of Punjab are notably high. This means the selenium in your wheat or rice is unknown without testing, and most people sit in a middle zone. Food sources include eggs, fish, chicken, sunflower seeds, mushrooms, whole grains and pulses.

A word on Brazil nuts, often recommended online as a selenium source. They are extraordinarily rich — a single nut can carry a full day's requirement, and the amount varies several-fold between nuts. Eating a handful daily can push intake into the range associated with hair loss, brittle nails, garlic breath and nausea. One or two a day is the usual suggestion; a handful is not a health food. Selenium supplements have a narrow safe window, so Farmicine regards selenium as a targeted correction when a thyroid specialist or advisor sees a reason, not a routine daily item.

Iodine: has iodised salt solved the problem?

Iodine is the raw material of thyroid hormone, which sets the body's metabolic rate, supports brain development in pregnancy and childhood, and keeps energy and temperature steady. India's universal salt iodisation programme has reduced goitre dramatically, but gaps remain: households using non-iodised rock salt, sea salt or "natural" salts as a wellness choice, people on very low-salt diets for blood pressure, and pregnant women whose needs rise sharply. Signs of low iodine include a swelling at the base of the neck, fatigue, feeling cold, dry skin and weight gain — the same picture as an underactive thyroid, which is why thyroid testing (TSH, free T4) is the doctor-first step rather than guessing.

Food sources beyond iodised salt include fish and seafood, eggs, milk and curd, and seaweed. If you have switched to an un-iodised artisanal salt, it is worth knowing you may have removed your main iodine source. Equally, excess iodine from kelp supplements can disturb the thyroid, especially in people with autoimmune thyroid conditions — more is not better here either. Farmicine lists iodised salt in moderation under Hormonal Imbalance (B5).

Copper: the balance zinc can upset

Zinc and copper compete for absorption. Taking a zinc supplement for many months, especially at the higher amounts found in some immune formulas, can slowly deplete copper, which is needed for iron handling, connective tissue, nerve insulation and pigment. Signs of copper shortfall include anaemia that does not respond to iron, fatigue, early greying and numbness. The practical rule: short zinc courses are fine; long-term zinc is better taken in a balanced formula or with a copper check, and the plate — nuts, seeds, pulses, mushrooms, cocoa, whole grains — supplies both in sensible proportion. The Good Life checklist flags trace minerals as a check-and-correct item rather than a daily default.

When to see a doctor

See a doctor for a swelling or lump in the neck, persistent fatigue with weight change or feeling cold, hair loss in patches, a wound that has not closed in two weeks, repeated infections, loss of taste or smell that persists, numbness or unsteadiness, or if you are pregnant or planning pregnancy — iodine and selenium needs change and self-supplementing is not advised. Thyroid conditions need testing and management by a physician; minerals support, they do not replace that care. This is wellness education alongside your doctor's care, not a substitute for it.

Related reading

Age-related corrections

🍇 Antioxidant Supplements After 40: Food First in India

Oxidative stress is the slow wear of cells that outpaces the body's own defences, and after 40 many people reach for an antioxidant capsule. This guide explains why amla, pomegranate, berries, green tea and turmeric usually work better than isolated supplements, and the specific situations where a supplement is a sensible addition.

Age-related corrections

📋 The Good Life checklist: common corrections by decade

A decade-by-decade list of the common nutrient and habit corrections most Indian adults benefit from checking, from vitamin D and B12 in the 20s to bone, hearing and protein after 60. Explains which items are food-first, which need a test, and which are doctor-first checks, and how the Good Life dashboard tracks them.

Age-related corrections

🩸 Iron and Ferritin in Indian Women: Beyond Haemoglobin

Tiredness, hair fall and breathlessness in Indian women very often trace back to depleted iron stores, sometimes long before anaemia shows. This guide explains ferritin versus haemoglobin, why menstrual loss and tea with meals keep women low, the vitamin C pairings and Indian foods that help, and why iron should be taken only when a test shows the need.

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Immune Dysregulation (B8)Hormonal Imbalance (B5)Immunity solution

Frequently asked

How many Brazil nuts a day are safe?

One or two is the usual suggestion. A single nut can carry a full day's selenium, and a daily handful can push intake into the range associated with hair loss and brittle nails.

Should I stop using iodised salt for 'natural' salt?

Be careful. Rock, sea and pink salts carry almost no iodine. If you switch, make sure fish, eggs, dairy or another iodine source is in your diet, and keep thyroid tests current.

Can I take zinc every day?

Short courses during a cold are common. Long-term daily zinc at higher amounts can lower copper, so it is better in a balanced formula or with your advisor's guidance.

Does zinc help with acne and hair fall?

Zinc supports skin integrity and hair follicles, and low zinc is associated with both. Correcting a confirmed shortfall may help; it is not a stand-alone answer.

This guide is wellness education, not medical advice, and does not replace a consultation with your doctor. Farmicine products are food supplements that support structure and function; they are not intended to diagnose, treat, cure or prevent any disease.