Why litchi is dangerous?

The litchi fructose content is very rich, but although the sweetness of fructose is high, it cannot be directly used by our body. After being absorbed by the capillaries of the gastrointestinal mucosa, it can be converted into glucose by the invertase in the liver to be used by the human body. It's like our usual blood sugar is the glucose in the blood. If you eat a lot of litchi , too much fructose enters the human blood, the invertase will be in short supply, leading to excessive fructose content, inhibiting the production of hepatic glucose and lowering blood sugar. After eating too much litchi , high concentrations of fructose stimulate insulin secretion, leading to lower blood sugar and acute hypoglycemia.