Diglycerol fatty acid esters are unsaturated fatty acids, including oleic acid, linoleic acid, and linolenic acid. Because there is a hydroxyl group in diglycerol fatty acid esters, they can form stable hydrated dispersions with water and have the effect of improving taste as well as preserving, so they are mostly used as food additives for making artificial cream, ice cream, milky drinks, chocolate, pastries, bread and other foods. Diglycerol fatty acid esters are similar to common fats and can be digested and absorbed. At the same time, it can stimulate the liver to produce more high-density lipoproteins, which can help to remove excessive cholesterol in the body and accelerate the metabolism of the body to a certain extent, and also has a certain improvement effect on cholecystitis. Therefore, moderate consumption of foods containing diglyceride fatty acid esters will not have a bad effect on the human body. Although moderate consumption of food containing diglyceride fatty acid esters will not affect health, but the food containing this additive is mostly artificial cream, ice cream and other high-sugar, high-fat food, taste and texture are very good, it is easy to cause excessive diet, resulting in increased blood sugar, obesity, etc.. Especially for patients who are diabetic themselves, it is easy to worsen their condition due to excessive sugar intake. In addition, the production process of diglycerides may produce trans fatty acids, which are not beneficial to the human body, but also increase the risk of heart disease, hypertension, hyperlipidemia and other diseases. Therefore, in the daily diet, it is still necessary to do less snacking, while trying to pick a snack with less additives such as diglyceride fatty acid esters.