A person should not consume more than 25 grams (half a gram) of edible oil every day. 25 grams includes cooking oil and oil for eating pork and other foods. The more edible oil you eat, the better. Eating too much fat, in addition to obesity, may also lead to too much fatty acid in the blood. When fatty acids are too much, they are mainly stored in the form of triglycerides, which leads to the increase of blood lipids and cardiovascular and cerebrovascular diseases.

Vegetable oil is a compound formed by the reaction of higher fatty acids with glycerol, which is widely distributed in nature. It is oil obtained from fruits, seeds and germ of plants, such as peanut oil, soybean oil, linseed oil, castor oil and rapeseed oil. The main components of vegetable oil are esters of linear higher fatty acids and glycerol. Besides palmitic acid, stearic acid and oleic acid, fatty acids also contain a variety of unsaturated acids, such as erucic acid, tung oil acid and castor oil acid. Vegetable oil mainly contains minerals such as vitamin E, vitamin K, calcium, iron, phosphorus, potassium and fatty acids. Fatty acids in vegetable oil can make skin moist and shiny.