Malnourished people have weaker hair that is easier to pluck.
July 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” Scurvy still occurs today and can be diagnosed by symptoms like gum bleeding and a specific rash, confirmed by low vitamin C levels.
17 citations
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October 1981 in “American Journal of Clinical Nutrition” Malnourished people have weaker hair that is easier to pluck.
6 citations
,
April 2019 in “Nutrients” Biotin is important for keeping zinc levels balanced in the skin and its lack can cause hair loss.
4 citations
,
April 2023 in “Autoimmunity reviews” High levels of IL6 and CRP, and low levels of vitamin D, might be indicators of alopecia areata.
23 citations
,
January 1964 in “Archives of Dermatology” Treatment with vitamin A did not improve the child's skin condition.
5 citations
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September 2021 in “Journal of cosmetic dermatology” People with alopecia areata often have abnormal thyroid hormones, thyroid antibodies, antinuclear antibodies, low vitamin D, and high C-reactive protein levels.
August 2024 in “Jordan Medical Journal” Picky eating in children is linked to lower weight, hemoglobin, vitamin D, and zinc levels.
December 2019 in “bioRxiv (Cold Spring Harbor Laboratory)” Redheaded people have higher levels of a vitamin D precursor, suggesting red hair may be an adaptation for better vitamin D synthesis in areas with less sunlight.
2 citations
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May 2011 in “British Journal of Dermatology” Pellagra, caused by niacin deficiency and presenting with photosensitivity, should be considered in patients with relevant symptoms and risk factors.
January 2013 in “Российский журнал кожных и венерических болезней” Androgenic alopecia, a common hair loss condition, is linked to changes in androgen metabolism and genetics, and can be treated with finasteride and minoxidil, but these treatments are only fully effective in 10% of patients.
14 citations
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January 2016 in “International Journal of Trichology” Many women with hair loss also have thyroid issues, high blood pressure, and low Vitamin D.
June 2025 in “British Journal of Dermatology” Premature canities is linked to low vitamin D and B12, family history, and higher MHR.
October 2018 in “Annals of oncology” Topical calcitriol (BPM31543) is safe for preventing hair loss from chemotherapy and shows some effectiveness.
July 2018 in “International journal of clinical & experimental dermatology” Eat a balanced diet for healthy hair; only use supplements if you have a proven nutrient deficiency.
November 2025 in “Iraqi Journal of Science” Celiac patients may have kidney function risks due to increased urea and creatinine and decreased magnesium, zinc, and vitamin C.
66 citations
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November 1997 in “Nutrition” One-third of patients on home nutrition had micronutrient deficiencies, with iron deficiency being most common, but serious issues were rare.
February 2025 in “Journal of Cosmetic Dermatology” Ferritin and vitamin B12 deficiencies are common causes of hair loss in women aged 18-45.
Taking too much biotin can mess up blood test results, which might lead to wrong diagnoses and treatments.
4 citations
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November 2016 in “Dermatologic Therapy” Topical tretinoin may increase beard hair density.
3 citations
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April 2015 in “Cleveland Clinic Journal of Medicine” The woman has scurvy and needs more vitamin C.
April 2014 in “Journal of Aesthetic Nursing” Mesotherapy with natural extracts and vitamins can improve hair loss and promote regrowth in most women.
February 2023 in “JEADV Clinical Practice” Biotin supplements significantly improved a young girl's uncombable hair.
4 citations
,
August 2005 in “Clinical Infectious Diseases” The man's symptoms improved after treating his scurvy with high-dose vitamin C.
April 1978 in “Pediatric research” Patients with anorexia nervosa did not show a correlation between zinc levels and taste perception or the severity of their condition.
November 2025 in “Zenodo (CERN European Organization for Nuclear Research)” The herbal hair serum promotes hair growth, reduces hair fall, and improves shine and manageability.
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.
May 2024 in “Portuguese journal of dermatology and venereology” Reassurance and counseling are key in managing acute telogen effluvium, with supplements possibly offering a placebo effect.
June 2022 in “Rheumatology research” Lupus can be a rare cause of high calcium levels in the blood.
12 citations
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January 2016 in “Journal of Clinical and Investigative Dermatology” Low vitamin D levels are common in people with Alopecia Areata.