Ergymag is rich in four forms of magnesium, vitamins B2, B3, B5, and B6, which contribute to the reduction of fatigue and normal energy metabolism. Magnesium also contributes to the maintenance of proper muscular function. Magnesium and vitamins B3 and B6 promote the maintenance of proper nervous system function and the psychological functions involved in stress management. Ergymag is also rich in zinc, which helps maintain a healthy acid-base metabolism, dehydrating the body. Magnesium. Dietary supplement rich in marine magnesium, B vitamins, and zinc.