Gainers - a high-quality nutritional carbohydrates and protein, with fruit flavours, containing ideal proportions of ingredients [ultra filtrated whey protein concentrate (eliminating milk sugar and fats), carbohydrates, vitamins and minerals], characterized by high bioavailability and nutritional value BV 104. With the assimilation process during the digestion, a minimum amount of energy is consumed and transport of amino acids into muscle cells is faster. The regular use of gainers during strength training programs accelerates the growth of muscle mass. Contraindication to use gainers is the period of application programs to reduce fat mass (weight).