Nitric Strength There are lots of different varieties of diet plans for Muscle Building. These include protein, anabolic, and low carb diets. The protein diet is one diet that many body builders use as well as. It is a known fact around the globe of bodybuilding that protein is important to gain the mass of muscle you are looking for. There are many ways you get your protein, but along with a protein diet, it associated with animal meats and other such involving protein.