Hi Amy!
Glad you came aboard. I am going to have to agree with TrainerDan on this one.... If you are running a marathon (god bless you!), than you're body is going to need A LOT of energy and your body is going to need the carbs. A marathon is a lot of miles on your body! TrainerDan recommended the Zone, if that's what you choose. I don't know too much about it.

Well, good luck on training for your marathon. Where is the marathon? I have a great respect for marathon runners. Running is my least favorite exercise and complain if I run 2 miles!!

Good luck!
Linda