AlgaeCal Plus is a powerful plant-based serving of 16 bone-essential nutrients. In clinical trials, these 13 minerals & 3 vitamins have been shown to increase bone density - even for folks in their 80s. Days Supply: 30 Main Ingredients: Calcium 720 mg (As AlgaeCal M. Superpositum) Magnesium 350 mg (As Magnesium Oxide & AlgaeCal M. S...