Advanced Muscle Mass Formula. 55g Protein per serving. Great taste. Muscle Juice 2544 is the ultimate weight gain formula on the market today. Each nutritionally complete dose supplies your body with 55 grams of the highest quality (as measured by Biological Value, BV) peptide-bonded and free form amino acids, predigested complex carbohydrates (glucose polymers), and pure crystalline fructose. No soy protein or artificial sweeteners used.