Dietary supplement that helps to provide magnesium to those deficient diets. It provides magnesium citrate, one of the most assimilable and digestible forms. The body lacks it, 72% of women and 42% of men. Indicated for people who suffer from muscle cramps, fatigue and many symptoms of premenstrual syndrome, due to lack of magnesium. This important mineral is essential for bone metabolism and the proper function of nerves and muscles, especially those of the heart and lungs. Most therapeutic doses of magnesium are in the range of 300-600 mg per day.