OsteoBalance provides a high calcium bone support formula with additional nutritional factors, such as vitamin D, that promote optimal calcium absorption and retention, while enhancing healthy bone mineralization. OsteoBalance provides 344 mg of calcium per day, combined with a comprehensive profile of important bone building nutrients, such as vitamins C and D, magnesium, manganese and zinc. Randomized, double-blind, placebo-controlled studies have reported statistically significant benefits of calcium supplementation for bone health. Calcium malate and calcium citrate malate are both highly bioavailable forms of calcium. In a two-year, double-blind, placebo-controlled trial, calcium citrate malate provided bone mass support for postmenopausal women with low dietary calcium intake. One study demonstrated that concomitant supplementation of trace minerals, including zinc and manganese, with calcium citrate malate helped to promote proper bone metabolism in postmenopausal subjects. Magnesium supports healthy bone mineralization and vitamin D reduces urinary calcium loss, while enhancing calcium absorption. Calcium intake, when combined with sufficient vitamin D, a healthy diet and regular exercise, may reduce the risk of developing osteoporosis.