October 2022 in “Deleted Journal” Long-term low-dose Vitamin A intake may cause increased brain pressure.
39 citations
,
January 1991 in “Oncology” High-dose vitamin A was safe and well-tolerated in a lung cancer treatment study.
1 citations
,
January 2018 in “Journal of clinical & experimental dermatology research” The study found no link between vitamin D deficiency and psoriasis but suggests more research is needed.
3 citations
,
November 2021 in “World Journal of Clinical Pediatrics” Vitamin D might help treat some types of hair loss, but more research is needed.
May 2024 in “Journal of ayurveda and integrated medical sciences” Amra Beej Majja Churna may help improve Vitamin B12 levels and symptoms in vegans.
17 citations
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April 2004 in “Acta Clinica Belgica” UV light makes skin signs of lack of carotene and vitamin A more visible.
May 2023 in “International journal of molecular sciences” The ABCA4 gene protects hair follicle stem cells from toxic vitamin A byproducts.
September 2020 in “Benha Veterinary Medical Journal” Sheep with skin diseases often have lower levels of certain trace elements and vitamin A, and higher oxidative stress and immunoglobulin E levels.
7 citations
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February 2013 in “Journal of Investigative Dermatology” Vitamin A may influence hair loss conditions like alopecia, but more research is needed to understand how.
14 citations
,
January 2022 in “Nanoscale” The research shows how a specially structured nanoemulsion delivers vitamins A and E through the skin.
January 2019 in “Clinical neuropharmacology” A girl's hair-pulling condition improved greatly after she started vitamin D treatment.
September 2018 in “PubMed” New strategies like vitamin A and dextromethorphan can help reduce methotrexate side effects and improve patient adherence.
28 citations
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March 1986 in “The American journal of medicine” Too much vitamin A can cause liver damage and skin issues.
1 citations
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June 2017 in “Veterinary dermatology” A cross-bred lamb with severe skin and movement issues had ichthyosis fetalis but normal vitamin A levels.
15 citations
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March 1996 in “PubMed” Anorexia nervosa may cause a hair defect called pili torti due to malnutrition and high vitamin A levels.
June 2024 in “Medicine” Higher levels of β-carotene and vitamin E may help prevent certain types of hair loss.
October 2023 in “Animal production science” Vitamin A deficiency changes cattle hair structure, while pregnancy may improve it, suggesting hair can indicate cattle health.
43 citations
,
October 1955 in “The journal of nutrition/The Journal of nutrition” Germ-free rats need biotin for growth and have different vitamin metabolism compared to regular rats.
7 citations
,
January 1991 in “Comparative biochemistry and physiology. A. Comparative physiology” A diet high in vitamin E improved blood health, skin, and fur in common marmosets.
3 citations
,
October 2021 in “Nutrition research” Estrogen affects how vitamin A is processed in mouse skin, which may impact acne treatment, hair growth, and skin defense.
1533 citations
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October 2008 in “Endocrine reviews” Mice without the vitamin D receptor have bone issues and other health problems, suggesting vitamin D is important for preventing various diseases in humans.
22 citations
,
February 2013 in “Journal of Investigative Dermatology” Altered retinoid metabolism in cicatricial alopecia suggests a balanced vitamin A diet may prevent the condition.
1 citations
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January 1980 in “Side effects of drugs annual” Taking too much vitamin A can cause health problems like bone pain and hair loss.
July 2012 in “Vitamins & trace elements” Smoking and drinking can lower vitamin levels and potentially trigger early hair loss, but overall vitamin levels don't seem to affect hair loss duration.
70 citations
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November 1984 in “Cell & tissue research/Cell and tissue research” Vitamin D3 affects cell differentiation in specific skin areas.
37 citations
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October 2021 in “Nutrients” Vitamin D might help regulate insulin in the body, but taking Vitamin D supplements doesn't clearly prevent or improve type 2 diabetes. More research is needed.
5 citations
,
October 2021 in “Clinical, cosmetic and investigational dermatology” Japanese patients with alopecia areata often have a higher BMI and consume more vitamin C, fruit, and retinol, which may affect their condition's development or severity.
3 citations
,
November 2020 in “Curēus” A child's hair loss from alopecia areata was fully reversed in five months using diet and supplements.
1 citations
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September 2020 The conclusion is that hair supplement ingredients may be unsafe and should be disclosed and proven safe before use.
November 2016 in “Zoo biology” Adding more vegetables and fruits improved capybaras' coat quality and health.