Each Adora Calcium Supplement disk delivers 500 mg of calcium, 250 IU of vitamin D3, 40 mg magnesium, and is only 30 calories. Adora Calcium Supplement is certified Kosher by the Orthodox Union, trans fat free, gluten free, and made with delicious, all-natural premium dark chocolate. Our Quality Assurance team oversees all steps in the process and ensures each bag of Adora Calcium Supplement is in compliance with FDA standards for dietary supplements standards. in addition, our facility is inspected annually for food safety by a third-party auditor. The high quality calcium carbonate, vitamin D3, and magnesium all meet United States Pharmacopeia (USP) standards and our chocolate is made with simple, all-natural ingredients that adhere to strict standards of quality.