Is it safe to take magnesium 400?
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4 min read
The recommended daily allowance (RDA) for magnesium is 400–420 mg for adult men and 310–320 mg for adult women, but the tolerable upper intake level (UL) for supplemental magnesium is 350 mg for all adults. This creates a vital distinction between obtaining magnesium from dietary sources and supplementation, raising questions about the safety of a 400 mg supplement.
