With its natural mixed berry flavor Bluebonnet Liquid Calcium Magnesium Citrate Plus Vitamin D3 will be a hit with everyone in your family! Each serving of Bluebonnet Liquid Calcium delivers 600 mg of calcium citrate 300 mg of magnesium and 400 IU of vitamin D3. All three of those nutrients play a vital role in bone health. Free of milk egg fish crustacean shellfish tree nuts peanuts wheat soybeans yeast gluten barley rice and sodium.