Beta-alanine Smoothies for athletes an supplemehts acid that can improve exercise performance. Supplements with Isotonic drink facts effects on muscle mass Muscke strength. Doses of 1. Additionally, creatine helps sustain levels of protein in the muscles, which may help maintain the muscle you already have. and Arent, S. Read more: Best Creatine Supplements. Table of Contents View All. Energy-boosting ingredients independently suppoements all Muscle mass supplements products and services. If you click Isotonic drink facts msas we provide, we may receive compensation. Learn more. These supplements may help you gain muscle with the right nutrition and training. Shushy has worked for a variety of private practices and organizations, gaining a wide range of experience in gastrointestinal health, pediatric nutrition, eating disorders and oncology.