MCHC with Patented Magnesium Glycinate Bone Builder with Magnesium Glycinate features the same MCHC found in original Bone Builder®, but with the addition of 167 mg of magnesium per serving. Features a 2:1 ratio of calcium to magnesium to support absorption. With more than one-half of the total body stores found in bone tissue, magnesium has been shown to play an important role in bone metabolism. Magnesium is provided as bis-glycinate†—a revolutionary, fully reacted amino acid chelate produced by a unique, patented process designed for enhanced absorption. Vitamin D is an essential nutrient that helps stimulate calcium absorption and regulate calcium and phosphorus levels in the body. Two tablets supply: Vitamin D (as cholecalciferol).....................133 IU Calcium....................................................333 mg (as MCHC and dicalcium phosphate) Phosphorus...............................................200 mg (as MCHC and dicalcium phosphate) Magnesium...............................................167 mg (as magnesium bis-glycinate†) Microcrystalline Hydroxyapatite...................800 mg Concentrate (MCHC)†† Other Ingredients: Microcrystalline cellulose, croscarmellose sodium, cellulose, stearic acid, silica, and coating (deionized water, microcrystalline cellulose, polyethelene glycol, and carrageenan). Recommendations: Two to six tablets daily. Form: 220 Tablet Bottles ††Microcrystalline hydroxyapatite concentrate supplies calcium, phosphorus, and trace quantities of other minerals.