I don't eat anything on a ride less than 3 hours, unless I didn't have much for my last meal. I only drink water - don't like gatorade - unless it's really hot (35+) and I'm not feeling strong. If I eat, it's a few shotblox or a granola bar or power bar with more water. Probably 100-150 calories max). Once in awhile I'll have a carton of chocolate milk if I happen upon a store. Food doesn't feel good in my tummy on most rides. Everyone is different....