Size:210 Count (Pack of 1)OsteoBalance provides 514 mg. of calcium per serving from calcium citrate/malate and calcium malate. This formula also includes a comprehensive profile of important bone building nutrients. Calcium citrate/malate has excellent bioavailability and provided bone mass support for postmenopausal women with low dietary calcium intake in a two-year, double-blind placebo-controlled trial. One study indicated that concomitant supplementation of the trace minerals zinc, copper, and manganese with calcium citrate/malate helped to promote healthy bone metabolism in postmenopausal subjects. Magnesium supports healthy bone mineral density and boron plays an important role in reducing urinary calcium and magnesium excretion. Like boron, vitamin D3 may reduce urinary calcium loss but is also a key nutrient because it enhances calcium absorption. Key Features: • Bone Health: OsteoBalance promotes optimal calcium absorption and retention and enhance healthy bone mineralization. • Calcium Supplement: OsteoBalance provides 514 mg of calcium per serving from calcium citrate/malate and calcium malate. • Comprehensive Formula: This formula also includes a comprehensive profile of important bone building nutrients such as vitamin D, magnesium, zinc, copper, manganese, boron, and silica. • Pure Quality: Our supplements are made with only premium ingredients sourced from trusted suppliers and guided by our nutritional experts, then carefully manufactured and tested to verify their potency and purity. • Pure Difference: What makes us different isnâ€t just our process or what goes into our supplements -- what we leave out matters, too. All Pure Encapsulations products are FREE FROM wheat, eggs, tree nuts & peanuts, gluten, artificial colors, flavors & sweeteners, coatings and shellacs, GMOs, unnecessary binders, fillers & preservatives.