Calcium Carbonate is a supplement food for calcium. It is available in pure powder form and lion share of Calcium Carbonate powder contains high percentage of elemental calcium. Elemental calcium may be helpful for healthy muscles, brains and hearts. It may be also useful in decreasing heartburn and for indigestion. Natural color of it may be varied and it helps you to regain your bone strength. Benefits Useful in getting strong bones and teeth No added ingredients Useful as an antacid Available with or without prescription Used in the form of powder and tablet.