How do you eat enough? I don't - I eat until I'm full, which is in a day usually one slice of bread (special bread that's very filling) (I skip this (or at least part of it) when I get the chance), two pieces of fruit, and a bit of vegetables. Sometimes meat. I try to drink lemonade instead of water, so I get some sugar into myself that way.
I try to eat more often - I eat two pieces of fruit for lunch, but as I can't manage two pieces AT lunch, I eat one during midmorning and one during lunch.
I'm losing weight fast without even trying. Part of this is because I'm tapering off Zyprexa (which is notorious for its weight gain and I did gain a lot on it) but most is because I eat little I think.

So far (It's 13:16 here) I've eaten a (small) bowl of yoghurt for breakfast and an orange for lunch. I have to eat a slice of bread within the next 43 minutes or my mum'll get mad, and I'm already apprehensive - how the heck will I manage that? I'm full!

How do you guys manage to eat enough?