From what I could tell, here's my advice:

- You need a balanced diet. All these diet-type things are OK, but really in the end it's just eating normal amounts and good stuff. This means you need carbs, and fats, and protein. As for fats and carbs, I really think what kind they are might help. If the fat is unsaturated and/or naturally occuring, and the carbs are natural starches and sugars, awesome. If you're eating lots of trans fats and lots of corn syrup (I truly believe these two things cause lots of... fat) that's not good.

That's not to say you can't have any. So, sure, go ahead and go to Burger King once or twice a week. I look up the nutrition info on any place that offers it, I've found the fries are the big culprit. Cut the fries and you've killed half the problem right there.

Cut down on soda. I need to do this but I'm having trouble >< Anything with corn syrup for that matter. I personally drink lots of milk, you should be able to find something. You don't need to eliminate this stuff completely unless you want to be a meatless zombie, but as someone stated, girls look better when they've got a bit of substance and look healthy.

Oh, and exercise. I know it's a bitch, but as someone else said, you'll be unhealthy even if you don't eat a ton. I watched a Penn and Teller recently (Have you seen it, Rebgirl? I know your political views are similar to mine and I like this show, don't agree with everything but it's interesting) and a guy being interviewed said fat people who exercise are healthier than skinny people who don't. That about sums that up. Hope any of that helped.