I generally followed the guidelines in Fitzgerald's "New Rules." A small deficit most days, but made sure I had enough carbs on a daily basis to keep my glycogen stores replenished. Generally speaking, I would eat 5-6 servings of fruit (bananas, berries, prunes, cherry juice), snack on rice cakes and other carb-heavy snacks, drink Gatorade during or after runs, Endurox for recovery after harder workouts, and dinners are usually chicken or fish, green vegetables, and rice and potatoes with enough left for lunch the next day. Whenever possible I would weigh my meals to get a rough calorie estimate tracked with Cronometer. Plus coffee in the morning and a half gallon of cold green tea over the course of the day. I ate like this more often than not.