Understanding the Causes and Symptoms of Biotin Deficiency
5. Hair Loss and Brittle Nails
Hair roots are comprised of protein cells, and blood vessels transport food to the roots, creating more cells. As this process continues, hair is pushed through the skin. Nails operate similarly, using the protein keratin to harden the nail cells as the old ones are pushed out from the root bed. Biotin deficiency interrupts amino acid metabolism, leading to partial or complete hair loss and brittle nails.
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