78 citations
,
January 2017 in “Skin appendage disorders” Biotin supplements may improve hair and nail growth in people with certain deficiencies or conditions, but there's not enough evidence to recommend it for healthy individuals.
5 citations
,
August 2020 in “Advances in Hematology” Automatically measuring ferritin can help identify iron deficiency in women with hair loss.
1 citations
,
January 2020 in “Инфекционные болезни. Новости, мнения, обучение” Lack of vitamin D might cause hair loss due to autoimmune problems, and fixing vitamin D levels could help treat it.
April 2022 in “Research Square (Research Square)” Iron deficiency is linked to a common type of hair loss called telogen effluvium.
28 citations
,
February 2012 in “PLoS ONE” A PKP1 gene mutation causes skin fragility and hair loss in Chesapeake Bay retriever puppies.
16 citations
,
September 2022 in “Plant Cell & Environment” Iron affects root hair growth in Arabidopsis during phosphate deficiency by influencing auxin signaling and vesicle trafficking.
1 citations
,
February 2026 in “Clinics in Dermatology” Vitamins help hair mainly if you have a deficiency; too much can cause hair loss.
Biotin supplements don't consistently help hair growth in alopecia unless there's a deficiency.
November 2023 in “Journal of plant nutrition and soil science” Boron deficiency in maize affects leaf boron levels and nutrient uptake differently depending on root hair presence and soil type.
January 2019 in “Egyptian Journal of Dermatology and Venereology /Egyptian Journal of Dermatology and Venerology” Low vitamin D levels might indicate more severe hair loss in alopecia areata patients.
June 1987 in “Pediatric Neurology Briefs” Biotinidase deficiency can cause symptoms like sleepiness, hair loss, and seizures.
39 citations
,
September 2013 in “Journal of Cosmetic Dermatology” Herbs can potentially treat hair loss by inhibiting a key enzyme and promoting hair growth, and deficiencies in zinc, biotin, and iron are linked to hair loss.
27 citations
,
March 2012 in “Dermatologic Therapy” Taking zinc supplements can help improve or cure hair loss caused by zinc deficiency.
246 citations
,
April 1976 in “Annals of Surgery” Zinc is crucial in nutrition, and its deficiency can cause health issues like diarrhea and hair loss, which improve with zinc therapy.
74 citations
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July 1995 in “PubMed” Lowering homocyst(e)ine levels can reverse skin and hair lightening by restoring enzyme activity needed for pigmentation.
54 citations
,
November 1995 in “The Journal of Clinical Endocrinology & Metabolism” Females with 5 alpha-reductase-2 deficiency have less body hair, no acne, normal fertility, and delayed menarche.
1 citations
,
January 2022 in “Journal of Cutaneous Medicine and Surgery” Poor nutrition is linked to increased hair loss in Canadian children.
10 citations
,
July 2018 in “Our Dermatology Online” Some vitamins and minerals are important for preventing hair loss, but treating hair loss with them without a known deficiency is not proven effective.
3 citations
,
May 2018 in “Journal of nutritional health & food science” Nutritional supplements can help manage hair loss and promote hair growth by strengthening hair roots and countering harmful effects of pollution, smoking, and deficiencies in vitamins and minerals.
64 citations
,
August 2014 in “The journal of allergy and clinical immunology/Journal of allergy and clinical immunology/The journal of allergy and clinical immunology” A deficiency in the TTC7A gene causes immune problems, gut issues, and hair loss.
Different types of hair loss can be caused by hormones, stress, autoimmune disorders, illness, or nutritional deficiencies, and can be treated with medication, nutritional supplements, or hair transplantation.
38 citations
,
October 2014 in “Current Opinion in Endocrinology, Diabetes and Obesity” 5-alpha reductase deficiency leads to male sexual development issues and treatments like finasteride help with prostate enlargement and hair loss.
Non-drug treatments like saw palmetto, horsetail, pumpkin seed oil, curcumin, and addressing nutritional deficiencies may help female hair loss.
126 citations
,
October 2012 in “PLoS ONE” Reduced cytokinin levels help plants adapt to low potassium by increasing root hair growth and potassium uptake.
3 citations
,
January 2016 in “CES Medicina Veterinaria y Zootecnia” Nutritional deficiencies in small animals can cause skin issues like allergies and hair loss.
July 2024 in “Brazilian Journal of Clinical Medicine and Review” Hair loss after bariatric surgery is common due to nutrient deficiencies and rapid weight loss.
October 2025 in “Brazilian Journal of Hair Health” Hair loss from weight-loss treatments is usually temporary and reversible.
January 2022 in “Clinical Cases in Dermatology” Micronutrient deficiencies might contribute to alopecia areata.
April 2015 in “The FASEB Journal” Selenium deficiency worsens aging symptoms in mice.
35 citations
,
January 2014 in “Postepy Dermatologii I Alergologii” DHT's role in hair loss is important, but measuring its level for diagnosis is questionable.