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Aging can decrease stomach acid and intrinsic factor production, reducing Vitamin B12 absorption
Healthy Skin, Hair, and Nails: B12 plays a role in cell production and is important for healthy skin, hair, and nails
McIlwain, H., Stanley, D
Vitamin B12 also plays a vital role in maintaining the health of the nervous system by supporting the formation of myelinthe protective sheath around nerves that ensures fast, efficient signal transmission
National Library of Medicine Medical Subject Headings (MeSH)
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