"Calcium and Magnesium are two of the most important minerals. This supplement provides equal amounts (one-to-one ratio) of both Calcium and Magnesium, from highly bioavailable True Food® ingredients and Sea CalciumTM seaweed complex. Two of the body’s most essential minerals. Important for helping maintain healthy bone density. Also supports healthy nerve and muscle function especially in the heart. Potent, highly bio-available food form of calcium and magnesium. These two minerals work together in synergy and also with Vitamin D"