Okinawa Coral Calcium "Donan" Coral fossils include 39% to 40% calcium, 47% carbonic acid, and 73 other mineerals in minute amounts. As such, much of the coral is calcium carbonate. Donan is mined directly from ancient coral beds above the sea level from Yonaguni island of Okinawa, Japan where the estimated amount of the deposit is about 10 billion pounds. "Donan" is made from the natural fossil coral resources of Okinawa's Yonaguni Island. The natural fossilized coral was processed into a fine powder (3.3 micron), devoid of any chemical additives. Without tase or smell, Donan can be added to everyday cooking for naturual and effective calcium intake so that it contains every mineral in similar proportion found in the human body. Donan is an all-purpose fossilized coral calcium and mineral powder, and is ready to mix with soups, baby foods, drinks, cereals, ice cream and all foods. It is recommended to use 1,000mg/serving (level scoop of small teaspoon) for its addition.