Low ferritin and vitamin D levels are linked to hair loss, suggesting the need for personalized nutrition and diagnostics.
June 2019 in “Medicine and science in sports and exercise” The runner's bone injuries were linked to untreated Celiac Disease and low energy availability affecting her bone density.
June 2023 in “British Journal of Dermatology” A person with Werner syndrome was initially thought to just have female pattern hair loss.
January 2010 in “The Internet Journal of Family Practice” Hypothyroidism slows metabolism, causing growth and mental issues in children and reversible symptoms in adults, needing early treatment.
6 citations
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September 2017
14 citations
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January 2015 in “ABCD” The surgery effectively promoted and maintained weight loss in obese women during the first year.
February 2026 in “British Journal of Sports Medicine” Transgender women have similar fitness to cisgender women, while transgender men have higher fat and lower strength than cisgender men; hormone therapy affects body composition and strength.
64 citations
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March 2021 in “Anaesthesia” Iron deficiency in women is common, often overlooked, and needs better recognition and treatment.
26 citations
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January 1994 in “Hormone and Metabolic Research” Taking spironolactone and linestrenol for androgen excess can lead to lower bone density in young women.
17 citations
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April 2010 in “Archives of Gynecology and Obstetrics” Obese women had more testosterone and less acne, but similar hair growth compared to non-obese women.
9 citations
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September 1989 in “PubMed” Sudanese children with severe malnutrition have low selenium levels, which may affect their recovery.
January 2026 in “Queensland University of Technology” Dietetic-led cognitive-behavioral therapy may improve treatment for adults with ARFID.
44 citations
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May 2014 in “The American Surgeon” Low zinc and iron levels can predict hair loss after sleeve gastrectomy in women.
Nutritional deficiencies can cause hair loss, but it can be reversed with a normal diet and less stress.
June 2025 in “International Journal of Science and Research (IJSR)” Low iron and vitamin D are common in young females with hair loss.
32 citations
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October 2023 in “Biomedicines” PCOS causes inflammation regardless of body weight.
June 2021 in “Current developments in nutrition” High doses of finasteride lower cholesterol and body weight in certain mice.
10 citations
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February 2007 in “Current Opinion in Endocrinology, Diabetes and Obesity” Low birthweight and rapid weight gain after birth may increase the risk of developing polycystic ovary syndrome.
5 citations
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January 1970 in “Journal of Nepal Paediatric Society” Hair loss can be a key sign of a rare type of rickets when vitamin D treatment doesn't work and advanced tests aren't available.
May 2026 in “Russian Journal of Skin and Venereal Diseases” Low ferritin and vitamin D levels, past infections, stress, and weight changes can trigger hair loss in women.
11 citations
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December 2014 in “The American journal of pathology” A gene deletion in mice causes weak protein, immune issues, hair loss, airway problems, and wasting disease.
February 2020 in “Scholars academic journal of pharmacy” The weight loss drug Orlistat can cause liver damage and should be used with caution, especially in those with liver or kidney issues.
March 2024 in “Deleted Journal” Bariatric surgery improves health but often causes hair loss and vitamin deficiency.
April 2026 in “Global Journal of Health Science” Micronutrient deficiencies are common in hypothyroidism-related hair loss, so monitoring these nutrients may help manage hair health.
158 citations
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May 1968 in “The journal of nutrition/The Journal of nutrition” Zinc is crucial for growth and health in rats.
1 citations
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April 2022 in “AACE clinical case reports” A 36-year-old person with a female appearance but male chromosomes was diagnosed with a rare enzyme deficiency affecting sexual development.
January 2022 in “Clinical Cases in Dermatology” Hypothyroidism can cause hair loss, which is often reversible with treatment.
January 2025 in “Journal of Cosmetic Dermatology” Poor nutrition, higher BMI, and stress may worsen seborrheic dermatitis.
38 citations
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November 2013 in “Journal of The American Academy of Dermatology” Higher BMI links to worse hair loss in Taiwanese men.
3 citations
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July 1969 in “PubMed” Radiation reduced zinc levels, growth, organ weights, and hair pigment in swine.