Pure Magnesium Carbonate powder Pharmaceutical Grade.
Magnesium carbonate contains 45% of elemental Magnesium per weight and is a natural source of magnesium.
Magnesium supplements may be of great benefit in chronic fatigue, insomnia and cramps. Magnesium carbonate is also used as an antacid and a laxative: one level teaspoon provides the daily allowance of 350mg of magnesium