Why does the body need protein to build muscle?
Muscle growth is a physiological reaction to an increased growth stimulus, i.e. the muscle is stimulated at high training intensity. The main reason for this is a higher weight and, to a lesser extent, a higher number of repetitions. The stimulation leads to an increased build-up of muscle proteins.This is a natural reaction of the body to small injuries to the muscle fibers that occur during training, in order to protect them from future stress.
Muscle proteins, like all other proteins in the body, are made up of amino acids, which are supplied by proteins in the diet. This opens up the importance of protein intake in the context of muscle building. Since the need for protein is increased, it must be met with a protein-rich diet.
