Eating very little or excessive protein.

HiProtein is the key nutrient in any bodybuilding diet plan. In order to build muscle one should consume at least 1 gram of protein per pound of lean bodyweight. Less protein can actually hinder one's progress significantly and result in frustration and lack of results. On the other hand excessive protein calories in a diet can be stored as body fat or in some cases used as energy. One gram per pound of lean bodyweight spread over 6 nutritious meals is a great starting point. If you want to build more muscle or you train harder OR you find that you are not recovering as fast you can slowly increase your protein intake to 1.1 grams per pound or 1.25 grams. Protein is the building block for muscle tissue and if you want to build mass or get ripped you have to start eating more.