There is a great article that I've taken an excerpt from... It goes something like this...
Now, for the majority of individuals carbs will be used for energy. The carbs used are stored in the muscles in the form of muscle glycogen. As you exercise, the muscle glycogen is depleted and must be replenished following your workout. Without properly refueling muscle glycogen you will have difficulty recuperating after an intense workout and will probably have a hard time with exercise the following day.
In order to repair muscles and prevent excessive muscle soreness following a workout, you need to be eating quality protein after your workout as well as throughout the day. If this is not taken seriously, you will continue to have muscle soreness and never see any positive results in body composition.
You can get the rest of this article "here"
. It breaks it down even more. You can also get a free report that gives more detailed information about nutrition...what to eat, what not to eat, and the right times to eat, before and after exercise. Believe it or not, it really does play a pretty big role in your fitness results. If you want to get the free report, it's called "What To Never Eat After Exercise"
. Hope this helps.