Originally posted by: Kipper
Originally posted by: SociallyChallenged
Not necessarily... your glycogen runs out in the night and starts digesting protein for gluconeogenesis. Most people's goal here is to maintain muscle mass. Protein can be made into glucose while carbs can't be made into protein. Clearly a balance is necessary, but carbs are not really the whole functional answer.
I don't follow your thought process here. Liver glycogen is likely to be exhausted by that point. Muscle glycogen may be more topped off but will be exhausted during the activity. The entire idea would be to supply carbohydrate BOTH for the activity AND for a protein-sparing effect during the activity and to recharge glycogen stores.
What are you suggesting, that he chug a protein shake immediately in the morning and bypass the carbs? I don't exactly see how that is particularly efficient, or advisable. Stating simply that protein can drive gluconeogenesis is a overly simplistic answer. The process is inefficient, requires a ton of water, and is not particularly beneficial for the purpose of aerobic exercise.
OP is looking for something quick that can be consumed in the morning prior to a run, and a bagel seems to me to be an easy solution first thing in the morning. Thereafter, with more time and the workout behind him, he can consume a more normal, complete meal.