Bluebonnet® Calcium Citrate & Vitamin D3 combines 2 ingredients that are both vital to healthy bone growth and development. Each serving delivers 1,000 mg of calcium citrate and 20 mcg (800 IU) of vitamin D3 cholecalciferol from lanolin. Free of milk, egg, fish, crustacean shellfish, tree nuts, peanuts, wheat, soybeans, yeast, gluten, barley, rice and  sugar.