Health advanced (Includes magnesium, manganese, copper and zinc). Chewables. 600 + D3 plus minerals. 2 in 1 dual action. Bone strength & flexibility includes magnesium & zinc. Know your bones. Fact: Calcium and vitamin D are not the only nutrients that support strong bones. Magnesium, zinc, copper, and manganese are also important bone fortifying nutrients that support healthy bones. Caltrate Plus Minerals is a dual benefit formula for bone strength & flexibility. Fact: 94% of Americans are not getting enough vitamin D from food alone. Caltrate has the highest level of vitamin D3 (Per tablet; among leading calcium supplement brands) to help maximize calcium absorption, supporting healthy bones and muscles. Doctor recommended. Dual benefits. Support bone flexibility. 2 in 1 dual action! (1) Calcium, vitamin D3, and magnesium for bone health. (2) Zinc and other minerals (Refers to copper and manganese) to support collagen production for bone flexibility.