Bone Health Dietary Supplement Milk Free Kosher Parve Gluten Free Bluebonnet s Liquid Calcium Magnesium Citrate & Vitamin D3 is formulated with calcium in a chelate of calcium citrate as well as magnesium in a chelate of magnesium citrate and magnesium aspartate in a delicious blueberry flavor. This formula also contains vitamin D3 (cholecalciferol) from lanolin for strong healthy bones.