November 2022 in “Journal of the Endocrine Society” Estrogen deficiency can reduce the enzyme activity needed to activate vitamin D.
10 citations
,
April 2020 in “Clinics in Dermatology” Biotin supplements improved skin and hair problems in a girl with biotinidase deficiency.
20 citations
,
July 1990 in “Clinical and experimental dermatology” Taking cyproterone acetate and ethinyl oestradiol for hair loss can lower vitamin B12 levels in women.
1 citations
,
February 2023 in “Digestive diseases and sciences” Gastroparesis may cause hair loss due to micronutrient deficiencies, and multivitamins might help.
2 citations
,
February 1945 in “Archives of Dermatology and Syphilology” Alopecia in the woman was likely caused by vitamin A deficiency, not a fungal infection.
40 citations
,
April 2013 in “Dermato-endocrinology” People with chronic Alopecia Areata often have lower vitamin D levels.
13 citations
,
February 2020 in “CHEST Journal” Vitamin C supplementation can resolve pulmonary arterial hypertension caused by vitamin C deficiency.
November 2022 in “Journal of the Endocrine Society” Taking biotin can lead to incorrect low results in free testosterone tests.
4 citations
,
January 2020 in “Obstetrics and Gynecology Reports” Obese women with PCOS have lower vitamin D levels.
845 citations
,
February 2001 in “The Journal of Clinical Endocrinology & Metabolism” The enzyme for activating vitamin D is found in many body tissues, not just the kidneys.
September 2023 in “International Journal of Trichology” Oral Vitamin D can improve hair density and reduce hair loss in Telogen Effluvium patients.
111 citations
,
April 2006 in “Annals of the New York Academy of Sciences” Vitamin D receptor is essential for healthy bones and skin.
August 2021 in “Journal of medical science and clinical research” An infant with seizures and hair loss was diagnosed with biotinidase deficiency and treated successfully with biotin.
January 2024 in “Biomedical journal of scientific & technical research” Vitamins A, B7, C, D, and E are essential for healthy hair growth and preventing damage.
September 2012 in “British Small Animal Veterinary Association eBooks” Good nutrition is crucial for healthy animal skin and hair.
18 citations
,
March 2016 in “Journal of Investigative Dermatology” Vitamin D and calcium are essential for normal hair growth.
2 citations
,
February 1990 in “PubMed” DDR-II hair follicle cells don't respond to 1, 25-dihydroxyvitamin D3, aiding diagnosis.
November 2023 in “Biomolecules” The research showed that Vitamin D and its receptor are important for healthy bones and normal hair and skin in rats.
January 2020 in “Turkiye Klinikleri Journal of Dermatology” People with chronic hair shedding had much lower vitamin D levels compared to healthy people.
47 citations
,
September 2002 in “Journal of Bone and Mineral Research” A mutation in the vitamin D receptor causes severe resistance to vitamin D, affecting bone health but not hair growth.
3 citations
,
August 2004 in “Veterinary Dermatology” Supplementing vitamins and minerals prevented hair loss in Icelandic horses.
8 citations
,
September 2019 in “Eating and Weight Disorders - Studies on Anorexia, Bulimia and Obesity” A woman with anorexia nervosa improved after treatment for pellagra, reminding doctors to check for this deficiency in patients with eating disorders.
January 2014 in “Dongwu yingyang xuebao” A dietary vitamin A level of 10,000 IU/kg is best for growing Rex rabbits.
27 citations
,
September 1994 in “The journal of investigative dermatology/Journal of investigative dermatology” Small amounts of Vitamin D3 can boost hair growth, but too much can stop it.
3 citations
,
March 2022 in “International Journal of Trichology” Special supplements with collagen, vitamins, and minerals can help treat hair loss.
January 2025 in “Open Veterinary Journal” Zinc, copper, and vitamin A deficiencies cause skin disorders in sheep.
January 2019 in “Clinical neuropharmacology” A girl's hair-pulling condition improved greatly after she started vitamin D treatment.
April 2016 in “Journal of The American Academy of Dermatology” A vitamin and mineral supplement significantly reduced hair shedding in Brazilian women with telogen effluvium.
31 citations
,
December 1997 in “Developmental Medicine & Child Neurology” Biotinidase deficiency can cause vision and walking problems in children and can improve with biotin treatment.