Most people who are training for a marathon (the NYC one is only a few weeks away) know that carbs are really important. Often, runners forget that you also need to get enough calories to provide you the energy for those long runs. Without enough calories in your diet, you will be left feeling sluggish, even if you are carbo-loading. You’ll be pushing your body to do more work than it has the energy for. Remember to fuel up — not just with adequate carbs, but with adequate calories (and don’t forget to hydrate!).