Different companies provide formulas for various demographics. A multivitamin for adult males might not have the same composition as one for young females. In general, a multivitamin usually contains 13 vitamins and 16 minerals in various amounts. Interestingly, most multivitamins have low levels of calcium and magnesium because the pills would become too large otherwise. A significant problem with multivitamins is that the FDA doesn’t regulate dietary supplements. As a result, the actual multivitamin may have different levels of nutrients than the label states.
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