Getting belly fat might seem to be simple — too many calories in, not enough burned — but science has found it's a little more complicated than making too many runs for the border or trips to Dunkin Donuts. What's more: You can attack it in a multitude of ways. A diet high in protein is one of the best strategies: It's highly satiating, which prevents overeating, and aids in the development of lean muscle, which torches fat. Plus, researchers have discovered that certain genes in the human body can contribute to obesity — and many compounds in protein-rich foods can shut them down, and even stop fat from forming! These are some of the most powerful. Stock up, and start burning fat around the clock.