I eat some fruit in moderation, but avoid juices and carbonated drinks which use high-fructose corn syrup.
IIRC Fructose is processed in a similar way to the way alcohol is processed in your system. It's not an energy source that can be used by your body without processing. I also believe it's one of those energy types that is readily stored as fat.
I read that the liver is the only organ that can process fructose directly. I tried taking honey before bed in order to avoid hangover. Seemed to work, but may have been placebo effect.