24 citations
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November 2008 in “Arquivos Brasileiros de Endocrinologia & Metabologia” Four patients with a type of rickets and hair loss had different mutations in their vitamin D receptor gene, causing it to not work properly.
November 2022 in “Journal of the Endocrine Society” Estrogen deficiency can reduce the enzyme activity needed to activate vitamin D.
November 2022 in “Journal of the Endocrine Society” Correcting vitamin D and progesterone deficiencies can significantly improve hair loss, acne, and BPH symptoms.
5 citations
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June 2021 in “Pharmacological Reports” Vitamin D may help reduce antibody levels in men with autoimmune thyroiditis and early-onset androgenic alopecia, but has no significant impact on thyroid function.
2 citations
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September 2021 Patients with alopecia areata may have lower vitamin D levels than healthy people.
July 2025 in “JAAD Case Reports” 2 citations
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September 2022 in “Frontiers in Nutrition” High-dose vitamin D3 does not improve symptoms or quality of life in COVID-19 patients after one year.
11 citations
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January 2017 in “Biochemical and biophysical research communications” 1α,25-dihydroxyvitamin D3 directly affects cartilage growth and development.
1 citations
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November 2022 in “INTERNATIONAL JOURNAL OF ENDOCRINOLOGY (Ukraine)” Vitamin D helps reduce depression in people with autoimmune thyroiditis and hypothyroidism.
November 2022 in “Gene Cell and Tissue” Zinc deficiency might affect vitamin B12 levels.
January 2024 in “Fitoterapia” Vitamin D3 is crucial for immune and bone health, with most consumers being women who follow doctor advice.
3 citations
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August 2022 in “JAAD international” Taking a daily multivitamin may be enough to promote hair growth in people with alopecia.
January 2021 in “İzmir Dr.Behçet Uz çocuk hastanesi dergisi” Children with Alopecia Areata often have lower vitamin D and B12 levels and higher thyroid activity.
7 citations
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October 2020 in “Dermatology practical & conceptual” Some skin, hair, and nail supplements can be toxic, interact with medications, affect lab tests, and may increase cancer risk.
13 citations
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April 1994 in “Baillière's clinical endocrinology and metabolism” Some people have genetic mutations that make them resistant to vitamin D, leading to rickets even with enough vitamin D intake.
1 citations
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May 2017 in “Journal of The American Academy of Dermatology” People with alopecia areata often have lower vitamin D levels than healthy people.
1 citations
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January 2018 in “Journal of Steroids & Hormonal Science” Oral vitamin D treatment can help some children with alopecia areata who have vitamin D deficiency.
2 citations
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June 2022 in “INTERNATIONAL JOURNAL OF ENDOCRINOLOGY (Ukraine)” Vitamin D can help reduce depression in people with hypothyroidism.
December 2020 in “Our Dermatology Online” Skin biopsies are recommended for confirming alopecia diagnosis due to variability in clinical assessments; the link between vitamin D levels and alopecia is unclear.
March 2019 in “Evidence Based Women Health Journal (Online)” Vitamin D supplements increased ovulation rates in women with PCOS who were vitamin D deficient.
Taking too much biotin can mess up blood test results, which might lead to wrong diagnoses and treatments.
January 2022 in “Medical research archives” Taking vitamin D might improve life for MS patients and reduce skin side effects from alemtuzumab treatment.
8 citations
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September 2021 in “Journal of Cosmetic Dermatology” Some diets and supplements might help with skin disorders, but their effectiveness varies and more research is needed.
April 2019 in “Journal of the Endocrine Society” An over-the-counter vitamin/mineral supplement improved hair loss and blood sugar control in a woman with non-classic 11-hydroxylase deficiency.
20 citations
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November 2008 Vitamin D is important for regulating calcium, phosphate, and hair health.
5 citations
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October 2019 in “Giornale italiano di dermatologia e venereologia” Biotin supplements can improve certain skin disorders and hair loss when a deficiency is present.
April 2016 in “Journal of Investigative Dermatology” Vitamin D can reduce skin inflammation caused by UV rays by enhancing cell "fitness" and skin repair.
December 2024 in “International Journal of Health Sciences and Research” Vitamin D is crucial for health, and deficiency can cause hair loss and other health issues.
3 citations
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January 2009 in “Annals of King Edward Medical University” Most urban, well-fed people in Pakistan have severe vitamin D deficiency and show symptoms.
3 citations
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August 2024 in “Middle East Fertility Society Journal” Vitamin D may help improve hormone levels in women with PCOS.