Also, when you do eat carbs, make sure they are WHOLE GRAIN. Whole grain is made up of complex carbs such as whole wheat, and your body will actually have to work* to break the carbs down. Whereas white bread is simple carbs (sugars) and they are very easily broken down and stored. Healthy foods take time to break down, meaning they will sit in your digestive tract and only give you a trickle of nutrients for about 3 hours before all the energy is broken down.
Multiple small meals (4-5) is the best diet plan. Eat only enough to satisfy your hunger, never eat to get full. If you eat 2-3 meals per day, they will typically be larger meals and your body doesn't need that much food at once for energy, so it stores it as fat. Small meals allows you to burn more of what you have in your stomach and small intestines before your body stores it, if it even has to.