American medical doctors have recommended nine kinds of "super food", which not only are beneficial to human health, but can also prolong your life.

1. Garlic and onion
Garlic and onion contain a special spicy ingredient, which can stimulate human body to generate . Glutathione is the most effective antioxidant in the liver, which not only can improve the detoxification effect of the liver, but also can expel the carcinogens out of the body.

2. Barley
Barley contains a lot of soluble and insoluble fiber. Soluble fiber not only can promote the metabolism of fat, cholesterol and carbohydrates in the body, but also can lower the level of cholesterol; while insoluble fiber is beneficial to the health of the digestive system and can prevent cancer.

3. Algae food
Algae can bring down the level of cholesterol and blood pressure, enhance immunity and prevent cancer.

4. Buckwheat
Buckwheat contains more protein than rice, wheat, millet, and so on. What's more, the high content of amino acids also can effectively reduce cholesterol and control the level of blood sugar. In addition, buckwheat contains a large number of flavonoid, which is beneficial to blood circulation and the health of heart. As a result, it is known as the best food to enrich the blood.

5. Beans
Beans contain a high content of proteins. As long as it is combined with cereal, it can provide all the amino acids needed by the human body.

6. Chili
Chili contains a large number of capsaicin, which not only can stimulate your taste, but also has a lot of effects such as preventing infection, relieving pain, resisting against cancer, and so on. What's more, it also plays an important role on the health of heart.

7. Nuts
Nuts contain large amounts of antioxidants and anti-inflammatory elements, which not only can make your heart healthier, but also have an anti-cancer effect.

8. Bean sprouts
Bean sprouts contain a large number of enzymes. These enzymes can make bean sprouts easy to be digested by the body. In addition, bean sprouts contain a lot of antioxidants, which can delay the ageing of human body.

9.
Sesame oil contains a large number of protein, unsaturated fatty acids, and lecithin, linolenic acid, and trace elements which are essential to human body. Often eating sesame oil can promote digestion, improve eyesight, protect liver, eliminate disease, and prolong human life. What's more, it also has some special curative effect on the elderly people who suffer from constipation, high blood pressure and high cholesterol.