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!
"When I'm on my bike I forget about things like age. I just have fun." Kathy Sessler
2006 Independent Fabrication Custom Ti Crown Jewel (Road, though she has been known to go just about anywhere)/Specialized Jett