1. Vitamin D: Study after study shows that vitamin D helps to ensure body cells listen and respond to insulin, a hormone secreted from your pancreas. One of its jobs is to help glucose get into body cells, which burn glucose for energy. 2. Calcium: Calcium is a mineral that works in tandem with D to help you shed fat. Calcium is stored in fat cells, and researchers think that the more calcium a fat cell has, the more fat that cell will release to be burned. 3. Protein: In addition to keeping hunger in check, eating protein at every meal helps to keep body composition--the amount of fat relative to muscle--in better proportion. Along with calcium and D, protein helps you to preserve muscle mass as you drop pounds. 4. Omega-3 Fatty acids: enables weight loss by switching on enzymes that trigger fat-burning in cells. They also help to boost mood, which may help reduce emotional eating. 5. Monounsaturated Fatty Acids: found in olive oil, nuts, seeds, avocados, peanut butter, and chocolate, improved 24-hour calorie burning by 0.1 percent and fat burning by 0.04 percent after 6 months. 6. Conjugated Linoleic Acid (CLA): CLAs are potent fat burners that are found, along with D and calcium, in dairy products. 7. Polyphenols: Polyphenols are the antioxidants that give green tea its health-and metabolism-boosting punch. Green tea is a great winter elixir for that reason. Drink a cup whenever you feel chilled and are tempted to eat even though you are not really that hungry. The tea will warm and soothe you, reducing hunger and cravings.