Calcium is the most abundant mineral in the human body and it is an essential factor in maintaining strong bones and teeth. Daily stress and pollution deplete our calcium levels and most diets do not provide us with adequate calcium. This may be part of the reason that one in four women as well as one in eight men over the age of 50 develop osteoporosis, leading to fractures and often permanent disability. SISU Calcium & Magnesium 2:1 is a convenient way to supplement your diet with those essential nutrients and vitamin D to prevent bone loss and improve bone density.