Is 500mg of vitamin B12 too much to take?
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4 min read
According to the National Institutes of Health, vitamin B12 does not have a tolerable upper intake level, and high doses are generally considered safe because the body excretes excess amounts. While 500mg of vitamin B12 is significantly more than the Recommended Dietary Allowance (RDA) of 2.4 mcg, your body absorbs only a small percentage of this high dose.
