December 2025 in “International Journal of Clinical Medical Research” Diet and gut health can improve skin, hair, and nails.
Hair can show daily calcium changes, linked to body calcium levels and influenced by hormones, and can help assess calcium metabolism issues.
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.
10 citations
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August 2021 in “Journal of Cosmetic Dermatology” Most patients with telogen effluvium had low iron and vitamin D levels; iron supplements were commonly prescribed.
5 citations
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January 2022 in “Pesquisa Veterinária Brasileira” Copper deficiency in goats and kids caused health and reproductive problems due to excess iron intake.