BioTechUSA One-A-Day is a multivitamin and mineral supplement. It is intended to help fill nutritional gaps alongside a balanced diet. The current formula provides 12 vitamins and 10 minerals in 1 tablet per day. Main benefits π‘οΈ Immune support β vitamins C, D, B6, B12, zinc, iron and selenium contribute to normal immune function. β‘ Energy metabolism β several B vitamins, vitamin C, magnesium and iron support normal energy-yielding metabolism. 𦴠Bone support β vitamin D, calcium, magnesium, zinc and other minerals contribute to maintaining normal bones. π§ Nervous-system support β B vitamins such as B6 and B12 contribute to normal nervous-system function. π Skin, hair and nails β zinc contributes to maintaining normal skin, hair and nails.