The two main forms of calcium dietary supplements are carbonate and citrate. Calcium carbonate is inexpensive, but is absorbed best when taken with food. Some overthecounter antacid products, such as Tums® and Rolaids®, contain calcium carbonate. Each pill or chew provides 200–400 mg of calcium.
GLC Minerals is a custom manufacturer of calcium and magnesium carbonate products used as animal feed, mineral fillers, pollution filters and soil conditioners. Our team of dedicated calcium carbonate product experts partner closely with our customers to achieve the right results.