Fat burning foods are defined as foods that burn off more fat than you ingest. The best foods are those coming from nature. Those foods that are unprocessed and found in nature include fruits, vegetables, nuts and seeds, and beans. Your body uses energy to extract the nutrients from these foods. The fiber in these foods helps to fill you up, clean your intestines, as well as provide you with needed vitamins and minerals. In addition to the above mentioned foods, eating beneficial fats also contributes to helping you burn fat.
The healthy fats are those that are mono-unsaturated. These include avocados, nuts and seeds, and olive oil. The healthy fats help stave off hunger as well as providing you with essential fatty acids needed for the production of hormones.
Foods high in protein and fiber are also fat burning foods. Examples of these include legumes, otherwise known as beans. Beans contain protein, fiber, iron, and magnesium. Examples of beans to consume are the navy beans, white beans, kidney beans, pink beans, red beans, lentils, mung beans, and split peas.
Eating whole grains such as brown rice, spelt, millet, oats, and whole wheat are also examples of fat burning foods. 
The fiber in these grains helps to clean the intestines of cholesterol as well as providing the body with needed vitamins. Also, eating whole grains as opposed to the white flours aids in regulating the blood sugar in the body. By regulating the blood sugar you're preventing the highs and lows that occur when eating the processed grains. The whole grains take longer to process for the body than the processed grains and thereby the body expends more energy in the digestive process.
If you are a carnivore, otherwise known as a meat-eater, the best one to consume is the grass-fed beef or bison. Grass-fed beef contain a higher level of omega-3 fatty acids and lower levels of inflammatory omega-6 fatty acids. Also, grass-fed meats from healthy cattle contain a special fat called conjugated linoleic acid (CLA) in much higher levels than grain-fed meat. CLA has been proven to help burn fat and build lean muscle mass.
