People do not eat oil for a long time will lead to the lack of unsaturated fatty acids and fat-soluble vitamins in the human body, dry and dull skin, slow thinking, memory loss, and is not good for human health. Cooking oil is fat. Fat is one of the three major nutrients needed by the human body, which can provide energy for the normal functioning of the body and growth and development, and is also the main form of energy storage in the human body. Using cooking oil when frying can make it easier to absorb some fat-soluble vitamins. Many people think that not eating oil can be thin, this idea is wrong. Long-term do not eat oil will be a lot of important fatty acid deficiency, many fatty acids, especially unsaturated fatty acids in the human body and the development of the nervous system have an important role. Long-term do not eat oil will also appear fat-soluble vitamin deficiency. It is recommended that normal people consume a certain amount of fats and oils every day, otherwise their health will be affected. If necessary, people can go to the hospital nutrition clinic for consultation, you can get more professional and comprehensive guidance.