Weider's Mega Mass 4000 is a specially formulated mass gainer for those who find it difficult to gain weight. Due to the high content of carbohydrates of various lengths, you will be provided with energy for a long time during long and powerful workouts. And milk protein isolate, together with a large amount of BCAA amino acids, will fully cover the nutritional needs of muscles and will be an excellent building material for muscles. Gainer Mega Mass 4000 In addition, Weider Mega Mass 4000 contains almost the entire complex of vitamins and minerals needed by the body every day. Gainer Weider Mega Mass 4000 3 kg (about 20 servings) and Giant Mega Mass 4000 7 kg (about 46 servings): Mega Mass 4000 3 kg Mega Mass 4000 7 kg Weider Mega Mass 4000 is a unique product that promotes rapid weight gain!