Fruit is the biggest thing. People think I'm a jerk in my family because if they fix breakfast, I just have fruit. They don't get that mixing fruit with eggs bread etc is the worst thing you can do. I'm so in tune with my body, it makes me SO sick to mix fruit with anything. I don't see how they can't feel it!
The good thing is though, fruit digests super fast so usually I'll have a fruit smoothie right when I wake up, then go get ready for my day and an hour or so later have a second breakfast, some eggs or something, before heading out.