April 2023 in “Dohuk medical journal” People with telogen effluvium often have much lower vitamin D levels than healthy individuals.
February 2023 in “Clinical, Cosmetic and Investigational Dermatology” Higher leptin and lower vitamin D levels may contribute to male pattern baldness.
151 citations
,
June 2010 in “Endocrinology and metabolism clinics of North America” Two rare genetic diseases cause severe rickets in children due to defects in vitamin D metabolism.
48 citations
,
January 2015 in “Indian Journal of Dermatology, Venereology and Leprology” Vitamin D is important for skin health and can help treat psoriasis, atopic dermatitis, and vitiligo.
40 citations
,
September 2019 in “World journal of clinical cases” An elderly man's hair grew back after a treatment that transferred healthy gut bacteria.
29 citations
,
October 2020 in “eLife” Higher testosterone levels can increase the risk of certain diseases like type 2 diabetes in women and prostate cancer in men, but can also protect against autoimmune diseases and hair loss. It also affects body fat and bone density.
2 citations
,
January 2017 in “Endocrinology” Testosterone and its metabolites have varied effects on different body systems, especially during puberty.
Premature hair graying is common and linked to stress, obesity, vitamin deficiencies, family history, lack of exercise, smoking, and allergies.
December 2024 in “Frontiers in Neurology” Testosterone with finasteride improved muscle and bone health in men with spinal cord injury.
January 2022 in “IntechOpen eBooks” Some lesser-known causes of PCOS include autoimmune issues, genetic mutations, and changes in the body's microbiome.
24 citations
,
June 2010 in “Clinics in Dermatology” Taking too many vitamin and mineral supplements can cause serious health problems.
400 citations
,
January 2014 in “British Journal of Sports Medicine” The consensus provided guidelines for treating the Female Athlete Triad and a system to decide when athletes can return to sports.
50 citations
,
February 2013 in “Annals of Clinical Biochemistry” Understanding how DHT works is important for diagnosing and treating hormone-related disorders.
April 2023 in “Acta Poloniae Pharmaceutica” Herbal extract shampoo increased certain minerals in hair and improved hair growth and scalp health.
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.
1 citations
,
March 2020 in “Functional foods in health and disease/Journal of functional foods in health & disease” OM-X® helped prevent negative effects of Vitamin C deficiency in mice, suggesting it could protect organs and regulate metabolism.
July 2024 in “International Journal of Dermatology Venereology and Leprosy Sciences” Bariatric surgery often causes temporary hair loss due to stress and nutrient deficiencies.
5 citations
,
December 1942 in “Journal of the American Medical Association” Choline and biotin are important for liver health and preventing certain deficiencies in animals, and more research is needed to understand their benefits in humans.
9 citations
,
January 1959 in “The journal of nutrition/The Journal of nutrition” Higher potassium intake may protect against hair loss and liver fat in lysine-deficient rats.
26 citations
,
April 1984 in “The American Journal of Surgery” Gastric exclusion surgery caused major weight loss and health improvements but led to some anemia and vitamin deficiencies.
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.
April 1981 in “Pediatric research” Copper treatments increase copper in all tissues, but brindled female mice accumulate much more copper in their kidneys without clinical effects, unlike brindled male mice where brain copper deficiency is clinically significant.
November 2025 in “Quality in Sport” Collagen supplements improve skin, hair, and nails, especially with vitamin C and minerals.
April 2025 in “Düzce Tıp Fakültesi Dergisi” Vitamin D deficiency is common in children with non-scarring alopecia, and managing it may help treatment.
August 2024 in “Journal of Cosmetic Dermatology” Telogen effluvium is linked to deficiencies in iron, vitamin B12, and thyroid function.
2 citations
,
January 2006 in “Indian Journal of Veterinary Pathology” Trichophyton mentagrophytes causes skin issues and nutrient deficiencies in young sheep, especially in winter.
1 citations
,
February 2026 in “Clinics in Dermatology” Vitamins help hair mainly if you have a deficiency; too much can cause hair loss.
73 citations
,
April 1999 in “Journal of steroid biochemistry and molecular biology/The Journal of steroid biochemistry and molecular biology” Vitamin D receptor is crucial for bone health and mineral metabolism.
February 2024 in “Curēus” A balanced diet with proteins, vitamins, and minerals is crucial for managing skin disorders.
November 2022 in “Arab Gulf Journal of Scientific Research” Taurine is important for many body functions and its deficiency can cause health problems.