September 2022 in “Polish Hyperbaric Research” Some treatments for hair loss, like finasteride, biotin, and minoxidil, can be effective, but their success varies by individual case.
4 citations
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March 2020 in “JAAD Case Reports” Vitamin B12 deficiency can cause darkening of all nails.
October 2019 in “Turkderm” Patients with pernio have lower vitamin B12 and ferritin levels than healthy people.
126 citations
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November 1987 in “The Journal of Pediatrics” Selenium deficiency can cause skin and hair color loss, muscle weakness, and blood cell changes, but these improve with selenium supplements.
8 citations
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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.
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.
October 2020 in “The American journal of gastroenterology” Para-aminobenzoic acid in hair supplements can cause autoimmune hepatitis.
1 citations
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January 2013 in “Nasza Dermatologia Online” Vitamin B12 deficiency can cause reversible hair color loss in children.
16 citations
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February 2008 in “PubMed” Vitamin B12 deficiency can cause skin darkening and white hair, but it's reversible.
June 2024 in “Journal of Psychiatry Spectrum” Iron deficiency can cause psychiatric symptoms that improve with proper treatment.
Early detection and treatment of iron deficiency anemia, especially in premenopausal women, is crucial for rapid symptom improvement.
1 citations
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May 2015 in “Zeitschrift für Gastroenterologie” Autoimmune gastritis is a common cause of iron deficiency and should be included in diagnostic guidelines.
16 citations
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January 2008 in “Acta dermato-venereologica” Vitamin B12 deficiency can cause skin darkening and increased blood vessels, but treatment can improve symptoms.
1 citations
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October 2020 in “Journal of the American Society of Nephrology” Proguanil can cause anemia and hair loss in kidney disease patients.
October 2014 in “Transfusion Clinique et Biologique” Iron deficiency can cause fatigue, exercise intolerance, and cognitive issues, even without anemia.
January 2025 in “The International Journal of Gastroenterology and Hepatology Diseases” Vitamin B12 is crucial for hair and nerve health, and its malabsorption can cause hair loss and nerve damage.
29 citations
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January 1963 in “PubMed” PNH can occur in patients with SLE, so doctors should be aware of this.
73 citations
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May 1976 in “JAMA” Long-term parenteral nutrition without zinc can cause severe zinc deficiency.
April 2015 in “Archives of disease in childhood” A chubby child can still be malnourished.
2 citations
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January 2021 in “Cureus” A child's chronic use of Senna caused liver damage and a severe decrease in blood cells, but improved after stopping Senna and getting treatment.
12 citations
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February 1986 in “PubMed” Injecting newborn mice with a niacin blocker caused skin, gut, and brain damage similar to human pellagra.
1 citations
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April 2023 in “Clinical, cosmetic and investigational dermatology” Antigens from skin cells may cause hair loss in perinevoid alopecia.
January 2026 in “Zenodo (CERN European Organization for Nuclear Research)” Iron deficiency anemia is common and treated with iron supplements and diet changes.
January 2026 in “Zenodo (CERN European Organization for Nuclear Research)” Iron deficiency anemia is common and treated with iron supplements and diet changes.
2 citations
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August 2002 in “PubMed” 14 citations
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January 2020 in “Women's health reports” Iron deficiency in menstruating women causes many health issues beyond anemia and needs early detection and treatment.
7 citations
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March 1931 in “Experimental Biology and Medicine” Iron deficiency causes hair loss in white rats and mice.
1 citations
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February 2023 in “Pediatrician (St Petersburg)” Early iron deficiency can lead to anemia during puberty, so it's important to address it early.
10 citations
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November 1946 in “Journal of the American Medical Association” Severe vitamin deficiencies in children can cause significant hair problems.