Calcium has long been known as the bone-building mineral, but it’s also important for enhancing muscle contractions, improving fat loss and boosting testosterone. While these are primary concerns for bodybuilders and other weight trainers, they’re also key components of health. Recent research at Selcuk University in Turkey discovered that male athletes who took 16 milligrams of calcium per pound of bodyweight had higher testosterone levels than those who didn’t supplement with calcium. Enhanced levels of testosterone are not only important for building muscle mass but also for improving health and a youthful appearance. To increase your testosterone levels, take 500 to 600 milligrams of calcium two to five times a day.