Complex Carbohydrates are found in fruits, vegetables and whole grains. Vegetables such as dry beans, peas, and lentils, also dark-green leafy and deep-yellow vegetables and starchy vegetables such as potatoes and corn. Whole grains such as wheat, rice, oats, corn and barley.

High-fiber, low-calorie plant foods have a tremendous natural fat-burning advantage that high-fat animal foods don't. This is because you body has to burn more calories to break down the complex carbohydrates than it does to break down fats. This means that fewer calories from carbohydrates are available for fat storage.

Your body has to burn 22 to 25 calories to digest 100 grams of complex carbohydrates, but burns only two calories to digest the same amount of fat.

Make sure your diet includes large portions of these foods. Where do you think the saying "An apple a day keeps the doctor away" came from?