RnrActinTech saidIt takes 72 hours for your body to burn a carb so that its useful, however proteins (such as peanut butter, meats, beans, etc) work much more quickly.
Is that for real? I've never heard anyone else ever say that. I thought carbs digested much more quickly than proteins, which is why a low carb diet helps some people lose weight.
I know from personal experience that if I eat carbs before an intense lifting session, I can do the session. If I eat protein (even in liquid form, which is easier to digest), I get too noxious to do the workout.
72 hours? Maybe to completely digest it. I'm pretty sure that it only takes 30 minutes for your body to be able to start using energy from simple carbs. Longer for more complex carbs, but definitely not 72 hours. Even Cassein whey, which is really slow to digest, takes a max of 7 hours. Unless I'm on crack. If I am, please let me know.