Medium-chain triglycerides have the best effect. Medium-chain triglycerides, that is, medium-chain fats, naturally exist in palm kernel oil, coconut oil and other foods and breast milk, and are one of the sources of dietary fats. The main component is "octyl and decyl glyceride", which has the best fat-reducing effect, while diglyceride can be used as emulsifier, and the fat-reducing effect is not obvious.