September 2020 in “Osmangazi tıp dergisi” Thyroid dysfunction, vitamin D and B12 deficiencies, and iron deficiency may be linked to hair loss condition Telogen Effluvium.
40 citations
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January 1973 in “Journal of Dairy Science” Zinc deficiency in male goats leads to poor hair growth, smaller testicles, reduced libido, and is hard to reverse.
19 citations
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January 1974 in “Laboratory animals” Zinc deficiency in female rabbits causes poor health and reproductive issues.
18 citations
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January 1987 in “PubMed” Zinc deficiency in alcoholic cirrhosis patients causes skin issues and other symptoms, which improve with zinc treatment.
8 citations
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February 2007 in “Journal of The American Academy of Dermatology” Higher serum ferritin levels than currently used might be needed to rule out iron deficiency in women with hair loss.
6 citations
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June 2011 in “Journal of The American Academy of Dermatology” Iron deficiency might be linked to hair loss, but more research is needed.
March 2026 in “FMDB Transactions on Sustainable Health Science Letters” A deep learning method can detect nutritional deficiencies from hair and nail images with 89% accuracy.
June 2025 in “Journal of Biochemistry International” Early diagnosis and treatment of iodine deficiency in buffalo calves is crucial for their healthy growth.
79 citations
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January 2017 in “Dermatology practical & conceptual” Correcting nutrient deficiencies may help with hair loss, but the benefits of supplements without a deficiency are uncertain and could be harmful.
March 2023 in “Pakistan Journal of Medical & Health Sciences” Vitamin D analogues can significantly help hair regrowth in Alopecia Areata patients.
December 2022 in “Journal of The American Academy of Dermatology” The authors maintain there is a significant link between vitamin D deficiency and central centrifugal cicatricial alopecia in Black patients, and call for more research on the topic.
November 2022 in “Journal of the Endocrine Society” Estrogen deficiency can reduce the enzyme activity needed to activate vitamin D.
50 citations
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May 1985 in “The journal of pediatrics/The Journal of pediatrics” Biotin deficiency in patients on total parenteral nutrition can cause serious symptoms but can be treated with biotin supplements.
10 citations
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April 2020 in “PloS one” Lack of Crif1 in hair follicle stem cells slows down hair growth in mice.
November 2023 in “Cureus” Most people in Jazan know about vitamin D, zinc, and ferritin's link to hair loss but don't practice enough preventive measures.
86 citations
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January 1990 in “The Journal of Pediatrics” Children with partial biotinidase deficiency are healthy at birth but may develop symptoms that improve with biotin therapy.
10 citations
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November 2018 in “Genetics in medicine” Lack of cystatin M/E causes thin hair and dry skin.
10 citations
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May 2012 in “PloS one” Low ERCC3 gene activity is linked to non-pigmented hair growth.
1 citations
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December 2021 in “Development & Reproduction” Lack of FPR2 slows hair growth by affecting hair cell activity.
1 citations
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May 2015 in “Experimental Dermatology” Overactive Stat3 in mouse skin causes hair loss and cell structure damage.
November 2025 in “Вопросы современной педиатрии” Treating Netherton syndrome with growth hormone and dupilumab improves growth safely.
January 2023 in “Voennaâ medicina” Hair loss in women can improve with iron and vitamin supplements if caused by iron deficiency.
Early detection and treatment of iron deficiency anemia, especially in premenopausal women, is crucial for rapid symptom improvement.
114 citations
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July 2003 in “PubMed” Lack of KSR1 stops certain skin tumors in mice.
105 citations
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March 2014 in “British journal of dermatology/British journal of dermatology, Supplement” Alopecia areata patients often have low vitamin D levels, suggesting they might benefit from vitamin D supplements.
48 citations
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April 2018 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” People with alopecia areata often have lower vitamin D levels and are more likely to be deficient in it.
32 citations
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December 2017 in “Journal of the American Academy of Dermatology” Alopecia areata patients often have low vitamin D levels.
16 citations
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March 2015 in “Wiener Klinische Wochenschrift” Vitamin D deficiency is common in women with PCOS and linked to some metabolic problems, but not the main cause of their metabolic issues.
7 citations
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December 2015 in “Turkish Journal of Osteoporosis” Vitamin D deficiency is common in adults with muscle and bone pain, especially women.
5 citations
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January 2020 in “The mental health clinician” Vitamin D supplements may reduce hair-pulling in people with Trichotillomania.