supplements

What Is "Elemental Calcium" on a Calcium Supplement Label? A calcium supplement label lists two numbers that matter: the compound, calcium carbonate or calcium citrate, and how much of it your body …

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You Bought Two Magnesium Products. The Numbers Don't Match. Now What? Say you pick up a bottle of magnesium glycinate that lists "400 mg" on the front, then check a magnesium oxide bottle at home …

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Zinc and copper compete for absorption in your gut, so combining several zinc-containing products can push your total past the point where copper status suffers, even if no single label looks risky. …

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