Protein has long been a buzzword and focus for fitness enthusiasts, trainers and researchers. I really like how Runners World presents this topic in this article…the info can be relevant to all endurance athletes and this excerpt below especially jumped out at me.
“Protein may not be a magic bullet–increased supplementation has not been found to automatically improve performance–but if your intake is low, you may start to feel fatigued, lose muscle mass, become rundown, and increase your risk of injury.”