You may see yourself willing to not consume carbohydrates, but without the energy they provide you, your body will break down your muscles to fill up with energy. Carbohydrates are essential for muscle mass recovery, so make sure you back up your exercises with foods like whole grain breads, cereals and rice, quinoa and sweet potato. Studies indicate that you should eat 0.36 grams of protein per 0.45 kg (1 pound) body weight. [13] The same studies point out that proteins should make up 15% of your daily calories. Keep a food diary to keep track of what you eat and how much you eat.