Dietary Supplement. Optimize Your Workouts - Before, During & After. 5g Amino Acids. 4g Isomaltulose. 25 Calories. Tri-Flow™. Personalized Fitness Nutrition fitmixer®amino™ supports all three phases of fitness to help you prepare, push and repair your body no matter what your fitness level. fitmixer®amino™ fuels your body with the essential nutrients it needs to achieve your fitness goals. Whether your goal is increased energy, muscle tone, strength, or endurance, fitmixer®amino™ is right for you.* fitmixer®a.