Originally Posted by
big'r
Simple carbs are high on the glycemic index, they enter the bloodstream quickly and fill it with glucose. Your body reacts because of this enormous dose given to it at once. It releases insulin cause it will have more energy than needed just to stay alive. It has enough energy to grow.
When you take high glycemic index carbs before/during/post workout, you usually combine this with whey protein (which will also enter the bloodstream fast). Whey added to the carbs will increas your insulin even more. And because of the stimulus you have given your muscle during workout, your body will start building muscle.
So far so good. But when you take a high dose of high glycemic carbs during your couch potatoe routine, your body will also respond by giving you a nice insulin boost. But since you have not given it the right stimulus to grow, it will just save this energy for a time in your life when you CAN use it by storing it as fat.
Damn, we don't want that. So try to use as much as possible low glycemic (complex) carbs during the day. These will enter the bloodstream more slowly and will not result in a huge insulin peak, followed by some - not so cute - fat storage.
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