Liquid Calcium Magnesium provides a 2:1 ratio of calcium to magnesium with an orange-vanilla flavor. Each tablespoon provides 600 mg of calcium and 300 mg magnesium in absorbable citrate form. Liquid Calcium Magnesium also contains cholecalciferol (vitamin D3) for additional support. This formula is xylitol-free and does not contain vitamin K. A 2:1 ratio of calcium to magnesium is best for individuals with greater dietary calcium needs. The form of calcium allows it to be taken with or without food.