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Nutrition and genetics in hair loss prevention

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2026-09-16 07:38 UTC → 2026-09-21 21:26 UTC · added ~~removed~~

Medical discussions regarding hair health emphasize the interplay between genetics, hormones, and nutrition. While androgenetic alopecia is identified as a primary cause driven by sensitivity to dihydrotestosterone (DHT), which causes hair follicles to shrink, dietary habits and nutritional deficiencies are highlighted as significant contributing factors. Experts suggest that certain dietary patterns can influence hair loss. High-sugar, high-carbohydrate, and high-fat foods may impair circulation or promote the activity of ~~5α-reductase.~~ 5±-reductase. Conversely, deficiencies in protein, zinc, vitamin D, B vitamins, and iron are linked to hair fragility. Recommendations for maintaining hair strength include consuming foods rich in protein, zinc, vitamins, and soy isoflavones. Recent insights expand on specific nutrient sources and topical interventions. Walnuts are noted for providing vitamin E, omega-3 fatty acids, zinc, selenium, and proteins, while salmon offers omega-3 fatty acids along with vitamins B and D. Eggs provide biotin, zinc, selenium, and protein, and whey is identified as a highly digestible protein source. Additionally, peppers are highlighted for their vitamin C content, which supports collagen production and iron absorption. Regarding topical applications, a method involving a homemade lotion of olive oil and black pepper has been suggested to reduce breakage and extend the duration of existing hair on the scalp. This process involves infusing ground black pepper into olive oil for at least two weeks to allow piperin to transfer. It is suggested that piperin may help dilate capillaries and increase blood flow to the scalp when applied to dry hair. Newer research highlights the impact of ultra-processed foods on hair and skin health. Dr. Luísa Ortiz Cabrera, an endocrinology professor, explains that when the body consumes excessive empty calories and lacks real food, it enters a “nutrient-saving mode,” prioritizing vital organs over peripheral tissues like hair and skin.

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