What is it used for? When losing weight and fat burning, WHEY helps to control appetite and the amount of calories consumed, as well as protect muscles from destruction, due to which the body will burn internal fat reserves. When gaining weight, it helps to create an excess of protein necessary for building muscles and relief. To maintain tone and good shape, you can replace a protein snack with a portion of WHEY, or even make a pp dessert on whey protein. As an additional source of protein, it helps to make up for the daily shortage of this macronutrient.