Blood thickening refers to the increase of blood viscosity, blood mobility is reduced, prone to hyperviscosity, patients are prone to thrombosis or embolic diseases. For patients with thick blood, they can eat more fruits rich in vitamin C, such as cherries, kiwi, etc. Vitamin C can enhance the density of blood vessels and increase the elasticity of blood vessels, so when the blood is thick, the chance of thrombosis or embolic disease is obviously reduced. Patients with thick blood can also eat more tomatoes, cucumbers, black fungus and other vegetables, because these foods can effectively reduce blood lipids, especially black fungus can clean the intestinal lipids, play a role in lubricating the intestinal tract, but also have a certain laxative, blood pressure effect. Therefore, patients with thick blood can eat more of the above-mentioned fruits and foods.