Which vitamin does the body absorb better, calcium with magnesium or calcium with Vitamin D?
Only one of the items you refer to is a vitamin; calcium and magnesium are essential minerals. Calcium is not absorbed easily by your body by itself and needs other vitamins and minerals to help the absorption process. Magnesium helps the body absorb minerals, including calcium, phosphorus, sodium, and potassium. Vitamin D helps the body absorb calcium, which is why it is often added to commercially-sold mik. In addition to vitamin D and magnesium, vitamin A and vitamin C are also required in the correct amounts to help your body absorb calcium..