Complete Nutritional Drink: Contains CalciLockTM blend of essential nutrients to help support bone health. CalciLockTM is a combination of essential nutrients to help build and maintain strong bones. This nutrient blend includes calcium, phosphorus, magnesium, zinc, and vitamins D, C & K and is designed to help support healthy bone development. 26 vitamins and minerals. 14 g high-quality protein to help maintain muscle. 3 g of PREBIO¹TM, a blend of prebiotic fibers designed to help promote the growth of beneficial intestinal bacteria and support a healthy digestive system. Antioxidants (selenium, vitamins C & E and beta carotene) to help support a healthy immune system.