Peanut is rather popular among the Chinese people. It is even called "ginseng fruit" because of its unique effects of medical use and health care. Peanut is also a kind of important oil-bearing crop, and it contains 43% to 55% of fat. Fat is composed of fatty acid. The oleic acid contained in fatty acid can effectively decrease the level of cholesterol in the blood serum. During the process, the oleic acid can not affect the high-density lipoprotein-cholesterol. Therefore, the content of oleic acid has become an important mark for people to evaluate the quality of edible oil. Among all the kinds of edible oil, olive oil and peanut oil contain the highest content of oleic oil. 

According to the medical research, the intake of olive oil can decrease the risks of getting cardiovascular diseases by 25% for the human body, and the intake of peanut oil and peanut products can decrease the risks of getting cardiovascular by 21%. The medical research has proved that each 100 grams of peanut oil can contain 8.48 milligrams of . The content of zinc contained in peanut is 16 times higher than that contained in colza oil and 7 times higher than that contained in soy-bean oil. Zinc plays an important role in accelerating the brain development for children. In addition, zinc can also activate the brain cells for the aged and defer the aging. The frequent intake of peanut products can also decrease the aggregation of blood cells and restrain the formation of tumor and obesity.

At the same time, the research has found out that a kind of natural polyphenol called "" is contained in peanut. The content of resveratrol contained in peanut is 908 times higher than that contained in grape. Resveratrol can effectively alleviate the aggregation of blood cells and prevent atherosclerosis and cardiovascular diseases. Therefore, the substance can resist the oxidation and dilute the blood, which can reduce the cholesterol and improve the health of heart and blood vessels. It can be said that resveratrol has become a kind of popular anti-oxidant for the human body to resist aging.

Nowadays, the NASA (national aeronautics and space administration) has regarded peanut as one of the space foods. According to the experts, more and more products made of resveratrol will be introduced on market. The peanut products like peanut oil and peanut butter will play more and more important roles in improving the physical health for the human body.