i'm going to run my second half marathon on sept 1st, with a view to obliterating my PB. everything's going ok, and i've been using an energy drink to replace lost fliud after long runs. on the run i use a small water bottle, the smallest size, and drink more when i get home.
however, i was wondering, do you need to take in carbohydrates etc in a HM? would it be beneficial to carry my bottle with a drink in? i ran last time taking a few sips at the drink stations.
i have no problems on the long runs, but i was wondering what more experienced runners might be able to tell me...