Calcium carbonate is only one of the many compounds used in making calcium supplements. Calcium carbonate is an alkaline-based salt. That is why it is known to control acidity in the stomach. It also requires an acidic environment to get absorbed, and therefore recommended by doctors to be taken after meals. It has been found recently that coral calcium is the most effective calcium carbonate source. This salt is obtained from fossilized coral reefs above sea level. It is pure, refined, and contains many other minerals in addition to adequate amounts of calcium. It is good for health because it not only helps in overcoming calcium deficiency but also treats many illnesses including depression, obesity, high cholesterol, and high blood pressure. This calcium carbonate source is now used in making high-quality calcium supplements. Coral calcium harvested from the island of Okinawa in Japan is the most beneficial form of this salt in terms of improving health and preventing many degen...