Feeling lethargic around 4-4:30? Break the afternoon slump with a handful of nuts. The protein and fat will give you some needed energy and keep you feeling full and satisfied until dinner. Plus some research has shown that a handful of nuts can help to prevent you from overeating at your next meal. In addition, they have beneficial fats that can help to improve your cholesterol numbers.
But remember, keep it to a handful (or about 1/4 cup, or for almonds, keep it to about 20)!