I am entering a half marathon in early June but I know I would run a lot better if I were a stone or so lighter. Plus my waist measurement has really shocked me lately. I have previously done really well on lower carb , heaps of energy, clearer skin alongside the weight loss but I wasn't running then. I have a real sugar habit which I need to kickdoes anyone run on lower carbs ? Do you eat carbs selectively in advance of longer runs (plus 10k?) Thank you in advance!