When a standard diet alone yields less-than-desired results, adding MassOne to your daily diet will help you see those serious mass gains. – Amazing Taste: MassOne comes in 3 delicious flavors to choose from Gourmet Chocolate, Chocolate Peanut Butter, and Vanilla. – Digest Over Time: This protein shake powder has both fast and slow digesting proteins for maximum benefits. – Protein Blend: 48g of high-quality muscle mass gainer protein from 6 different sources to keep your body growing. – Mass Gainer: Helps to increase mass size with 720 calories per serving and carb load with 118-124g of carbs per serving. – Ingredients You Can Trust: Our protein is made using Good Manufacturing Practices, so you get a safe, all-natural protein powder.