>ASAP! There is a 50 min window after a workout where the body
>reabsorbs nutrients such as glycogen and protein to aid in
>muscle repair.
There are various opinions about how long that 'window' is: I've seen anywhere from 20 minutes to 2 hours, but I just say ASAP after a workout. So try to get a 4-to-1 carb-to-protein feeding (preferably something easy to digest, like a smoothie) within about 20-30 minutes after working out. Then something with more protein within an hour or two. Note that the post-workout feeding is mostly carbs, NOT protein, as some suggest, because the body needs to replenish its glycogen stores in order to go from catabolic (breaking down) to anabolic (building up) condition.