Some people mistakenly consume too much extra protein at the beginning of their muscle-building program. By doing this, too many calories are being consumed and if a person is only exercising a small amount, fat can increase. Instead of adding in a large amount of protein all at once, try substituting other foods in your diet for protein, or adding it in small increments. This is the best way to give your body a chance to use the protein that you are consuming in the proper way.