Your morning snack attack is caused by a dip in blood sugar levels. Fiber-rich oatmeal stays in your stomach for hours, staving off a doughnut run.
Watch out: Steer clear of the sugary flavored varieties. Choose the plain stuff, and sweeten it with berries.
Go nuts! They slim your tummy by keeping it full. A Purdue University study showed that people who ate nuts felt full longer than those who ate rice cakes. Stick to 24 almonds a day to satisfy your hunger pangs without overloading on calories.
Watch out: Skip salted nuts; too much sodium raises blood pressure.