Some supplements shouldn't be mixed, like magnesium and calcium or copper and zinc — let these experts explain why.
High doses of calcium or other minerals (including magnesium, certain forms ofiron, and zinc) from supplements may decrease the absorption of carotenoids, such asbeta-carotene,lycopeneandastaxanthin, from foods and/or supplements. It is best to take carotenoid supplements at a different time o...
“If not treated, calcium will not be properly absorbed, and the body will borrow calcium from the bone to keep blood levels stable.” Calcium may affect how the body absorbs iron, zinc or magnesium, Smith says; “consider taking calcium at least two hours apart” from those minerals. ...