Sports is Physically Exsercise

My first acquaintance with sports nutrition occurred at the time when I began to actively engage in fitness and bodybuilding. Passing into the hall for two years, I realized that I was very tired and it's time to rest. Not losing time in vain, he began to read literature and study forums. Of course I knew what protein is and why it is needed. It was necessary to understand whether he was working, or it was just a good marketing move.