Cal-Mag Citrate + Vitamin C helps maintain normal bone and muscle health.* An analysis of a large number of previously conducted research studies on calcium and bone mass showed that daily supplementation of 500-1,500 mg of a well-absorbed form of calcium supports bone mass in adolescents, young adults, older men, and postmenopausal women.* In addition to playing an essential role in maintaining normal bone density, magnesium is essential for normal cardiac rhythmicity, normal pulmonary function, and healthy blood glucose regulation.* 
The addition of vitamin C also supports immune function and connective tissue.* Per scoop, Cal-Mag Citrate + Vitamin C provides 500 mg each of calcium and vitamin C, and 200 mg of magnesium. The effervescence created by adding the powder to water enhances the absorption of the citrate-mineral chelates.*