We don't think of protein as a way to improve cardiovascular performance in the same light as we do with strength gains. If protein improves strength, does it also do the same with cardio? More specifically, does soy protein improve cardiovascular performance?
Creatine is one of the most popular supplements available on the market with sales estimated at $400 million annually. This popularity comes for a good reason; creatine is one of the few supplements that consistently demonstrates its effectiveness in a high number of research articles.