― I thought it was time to give you a few nutritional tips to gaining muscle. ∙ 1. Eat Plenty of Protein. ∙ Proteins are the building blocks of your muscles, and if you want to gain muscle mass, you need to eat more than the muscles use. ∙ 2. Make sure it the right kind of proteins. ∙ Your protein should come from lean sources such as lean beef, turkey, fish like salmon, chicken breasts, and fat-free or low-fat cottage cheese. ∙ 3. Healthy carbs. ∙ The [...].