Fructose metabolism and absorption block, like glucose, can be converted into triglycerides, and excessive intake can also lead to obesity and hyperlipidemia. The intake of fructose should not be too large. The daily intake threshold of fructose in healthy people is 30 ~ 80 g (average 40 g). Excessive intake, especially one-time intake, will lead to fructose malabsorption and gastrointestinal reaction.