Metagenics Cal Apatite with Magnesium

What the brand says

Cal Apatite with Magnesium is the same formula as original Cal Apatite®, but with the addition of 300 mg of magnesium per serving. Magnesium plays important roles in bone metabolism, with over one-half of the total body stores of magnesium found in bone tissue.♦ Provides a 2:1 calcium to magnesium ratio. Magnesium is provided as a blend of glycinate, citrate, and aspartate designed for enhanced absorption. Does not contain magnesium oxide