I agree. Begin the morning with a good breakfast (oatmeal with raisins, cranberries, blueberries, walnuts & almonds is my choice ), don't go out too hard in the beginning, and refuel FREQUENTLY (at least every 15 miles). Stay hydrated - hydration starts days before the ride - plus keep drinking throughout. If you do all those things you will be fine.

Good luck and let us know how it goes!