Hair fall is often treated as a topical problem, but in dermatology, it is frequently read as a systemic signal. Many people who experience hair loss and thinning first think about changing their shampoo or applying hair oil, rarely any attention is paid to the nutritional gaps triggering the problem.
Dr Rinky Kapoor, Co-Founder and Director, The Esthetic Clinics, shared with Moneycontrol the foods and nutrients that can help treat the cause from within, rather than just addressing external damage.
Protein intake is central, but not just in quantity. Hair follicles require a steady supply of essential amino acids to sustain keratin production. “When diets are inconsistent, low in protein, or heavily calorie-restricted, the body reallocates resources away from non-essential functions like hair growth. Over time, this leads to weaker strands and increased shedding,” Dr Kapoor said.
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Including complete protein sources such as eggs and dairy, or well-paired plant proteins like lentils with grains, helps maintain this balance.
Iron deficiency is another key factor, and it often exists without obvious symptoms of anaemia. “Ferritin levels, which reflect stored iron, are closely linked to hair health. Low ferritin has been associated with diffuse thinning, particularly in women. Absorption also matters. Combining iron-rich foods like spinach or legumes with vitamin C sources can significantly increase the amount of iron the body actually uses,” she added.
Other micronutrients influence follicle function at the cellular level. “Vitamin D receptors are present in hair follicles, and low levels are linked to irregular growth cycles. Zinc supports tissue repair and regulates oil glands around follicles, which affects both scalp condition and hair strength,” she noted.
Deficiencies tend to show up as brittle texture or slower regrowth.
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Fats are often overlooked. According to Dr Kapoor, omega-3 fatty acids help maintain the scalp’s lipid barrier, which protects against dryness and low-grade inflammation. Without this support, the scalp environment becomes less stable, indirectly affecting hair quality.
Looking after your diet helps to focus on patterns rather than quick fixes. Stable eating habits, adequate nutrient intake, and early correction of deficiencies create the conditions that hair follicles rely on.
1. Why is my hair falling despite using good shampoos and oils?
Hair fall is often a systemic signal, not just a scalp issue. Nutritional gaps, especially in protein, iron, vitamin D, zinc and healthy fats, can weaken follicles and increase shedding despite good topical care.
2. How does protein affect hair health?
Hair follicles need a steady supply of essential amino acids for keratin. Inconsistent, low-protein or calorie-restricted diets make the body prioritise vital organs over hair growth, leading to weaker strands and more hair fall.
3. Can iron deficiency cause hair thinning?
Yes. Low ferritin (stored iron) is closely linked to diffuse thinning, especially in women. Iron deficiency may exist without obvious anaemia, and poor absorption worsens the problem, affecting hair density over time.
4. Which vitamins and minerals are important for hair?
Vitamin D and zinc are key. Vitamin D receptors in follicles influence growth cycles, while zinc supports tissue repair and regulates oil glands. Deficiencies often show as brittle hair and slower regrowth.
5. Do healthy fats matter for hair health?
Omega-3 fatty acids support the scalp’s lipid barrier, protecting against dryness and low-grade inflammation. Without enough healthy fats, the scalp environment becomes unstable, indirectly reducing hair quality and strength.
Disclaimer: This article, including health and fitness advice, only provides generic information. Don’t treat it as a substitute for qualified medical opinion. Always consult a specialist for specific health diagnosis.
2026-04-16T09:32:29Z