How can beer fit in this diet? Are the carbs in beer high GI? What about alcohol? Will it hurt the ability of the insulin to usher in the glucose? I'm a college student who likes to drink w/ my friends on weekends. I know that when your under the influence, you body WILL use ketones since they are most easily converted into energy. During the HI carb phase, are we attempting to turn glucose back into our body's primary source of energy, or are we merely trying to get the glucose into our muscles (forming glycogen)?