Comprehensive bone-support formula with 100% citrate minerals* Offers a combination of calcium and magnesium, plus boron and vitamins A, D, and K Promotes bone development and maintenance* Supports eyesight, skin, energy metabolism, immune health and muscle function* Calcium and magnesium are delivered in citrate form, providing superior bioavailability Delicious natural blueberry flavor Cal Mag Berry Liquid + delivers six bone-supportive vitamins and minerals in a great-tasting blueberry flavor to help maintain optimal bone health. As bones are constantly being remodeled, they require an adequate supply of nutrients to maintain their strength. Calcium is an important structural component of the skeleton, while magnesium promotes bone formation. Both minerals are provided in organic citrate forms, which have demonstrated improved bioavailability when compared to inorganic forms. Vitamin D further supports bone health by promoting calcium absorption and the production of vitamin K-dependent proteins such as osteocalcin (bone Gla protein), which is secreted by bone-forming osteoblast cells. As osteoblasts and osteoclasts express retinoic acid receptors, vitamin A may provide additional support for proper bone remodeling. The trace element boron is also included to help absorb and use calcium, magnesium and vitamin D. To further maintain overall well-being, this formula helps support eyesight, skin, energy metabolism, immune health and muscle function.*