Rainbow Light Nutritional Systems - Food-Based Calcium, 180 tablets
Features 500 mg of calcium per tablet, with 250 mg of magnesium. Calcium is essential for bone formation and muscle contraction, while magnesium supports calcification of bone and muscle relaxation. Also contains vitamin D and glutamic acid HC1, natural cofactors to ensure assimilation of the minerals, and horsetail and nettles, botanicals with a natural concentration of minerals.