I'm naughty, I'll have my breakfast (most often an apple and yoghurt, or grapes) at about 11am-12pm and then nothing at all until WI at 6. I'll drink plenty up until about 2, then only small sips after that. Occasionally I'll eat something small for lunch, like an ice lolly, an apple and some ham slices. I never have a big heavy meal the day before WI either..
It sounds a bit obsessive written down, but I know just how much my body reacts to food etc, I just tend to cut it out. I wouldn't advise it though, it's just food never sits with me well at the best of times!