Americans spend over 30 billion dollars on weight losing supplements, most of which don't even work. A much healthier and economical alternative is eating the right foods. Next time you go shopping be sure to get these food products, and help shed off unnecessary fat.

Eggs: Skip pancakes and bagels this morning and eat eggs instead. Eggs, which are rich in protein, will help you feel fuller longer. Research has shown that people who consume eggs are less likely to overeat, and at the same time their metabolism is increased. Other research has proven that eggs even help stabilize blood sugar levels and therefore insulin spikes are minimized.

Grapefruit: Probably the most common weight-loss food grapefruit does indeed burn fat. Special phytochemicals in grapefruits reduce insulin levels, thereby helping your body metabolize calories instead of storing them in the form of fat. Have a grapefruit at-least twice a week if possible.

Nuts: Nuts although high in fat (good unsaturated fats that are necessary for the body to produce hormones), are perfect for curbing appetite. A study from Purdue University found that when a group of 15 normal-weight people added about 500 calories worth of peanuts to their regular diet, they consumed less at subsequent meals. The metabolism of the participants also spiked up by 11%, therefore they burnt more calories doing nothing. Health bonus: Walnuts contain omega-3 fatty acids. Also pecans are good against heart diseases, as proven by research.

High-fiber whole grain cereal: Studies show that eating a high fiber whole grain cereal, can help curb appetite. These whole grains contain complex carbs which take a long time for the body to breakdown, therefore the energy is supplied to the body for the whole day. Also high fiber diets help prevent constipation and ensure a healthy bowel.

Red peppers: Add some heat to your meals, not only for the taste but also for the health benefits. These peppers contain capsaicin, which reduces appetite.

Beans: You've probably never heard of cholecystokinin, but it's on your side in the battle for weight-loss. This digestive hormone, present in great quantities in beans, is a natural appetite suppressant. At the same time beans provide your body with protein, which not only boosts metabolism but also helps muscle gain.

Olive Oil: Commonly found in salad dressings and marinades, olive oil (a monounsaturated oil) contains oleic acid, which is also a hunger killer. In a study in Australia, 12 post-menopausal women (ages 57 to 73) were given a breakfast cereal dressed either with a mixture of cream and skim milk or half an ounce of olive oil and skim milk. No wonder the women who ate the olive oil-laced muesli boosted their metabolism.

Vinegar: It's one of the best food for making you full. In a Swedish study, researchers found that people who ate bread dipped in vinegar felt fuller than those who had their slices plain. According to scientists the Acetic acid in the vinegar may slow the passage of food from the stomach into the small intestine, so your tummy stays full longer. Vinegar can also prevent the sharp sugar level boost after eating refined carbohydrates, such as white bread and crackers.

Green Tea: No wonder the Chinese are so slim. Anti-oxidants in green tea, known as catechins, speed up metabolism and fat burning. Green tea has the special properties of having almost zero calories and the ability to make you reduce your hunger. It also aids in reducing cholesterol and preventing a few diseases.

Tofu: Not the best tasting of foods, Tofu does have beneficial properties. It is high in protein and is known to make you full quickly. Research shows people who eat tofu regularly are slimmer and healthier than those who do not.

Remember these foods are great aids in fat loss, but you also need determination and proper exercise to lose weight. Good Luck!