If 30 is a long distance for you, you probably will want a snack. When I started riding 30 would be hard without Gatorade and maybe a small snack. I was already running four days a week, so I had a good fitness base but 30 miles would wipe me out.
Four years later I will not eat on a 30 miler, I will however have one 20 oz bottle water and one 20 oz of something with electrolytes. I usually eat every two hours (in the normal area I ride this would be about 35 miles) because anything more tends to upset my stomach.
Amanda
2011 Specialized Epic Comp 29er | Specialized Phenom | "Marie Laveau"
2007 Cannondale Synapse Carbon Road | Selle Italia Lady Gel Flow | "Miranda"
You don't have to be great to get started, but you do have to get started to be great. -Lee J. Colan