Manufacturer's Description: NOW® Coral Calcium Plus contains an alkaline form of Calcium that can help to support a healthy serum pH. In addition, Coral Calcium contains a number of trace minerals that are important for bone health, as well as for optimal enzymatic activity. NOW® Coral Calcium is not harvested from living coral reefs or even from the ocean environment but from above-ground sources in Okinawa in an ecologically friendly manner. In this Coral Calcium Plus formula, Magnesium and Vitamin D have been added because of their essential role in bone metabolism. Supplement Facts Serving Size:2 vcaps Servings per Container: 125 Ingredient Amount % Daily Value** Vitamin D 400 IU 100 Calcium 500mg 50 Magnesium 250mg 60 Fossilized Coral Calcium 1430mg † ** Percent Daily Value is based on a 2000 calorie diet. Your daily values may be higher or lower depending on your calorie needs. † Daily Value not established. Manufacturer's Directions: As a dietary supplement, take 2 Vcaps 1 to 2 times daily, preferably before meals with water.