Fish produces fire and meat produces phlegm, this is a common saying, the general meaning from the perspective of Chinese medicine, fish contains a lot of protein, after eating a lot, it is easy to lead to excess nutrients, gum bleeding, gum swelling, mouth ulcers, and even mucosal bleeding and other symptoms of fire. And meat produces phlegm, mostly because it is believed that meat contains a lot of fat, after a lot of oral consumption, it is easy to cause the body’s blood lipid elevation, blood viscosity increases, which will lead to the human body to appear related disease performance, like stroke, brain hemorrhage, and even easy to appear too much phlegm evil in the trachea. Chinese medicine believes that phlegm mainly coexists with dampness, so meat produces phlegm and meat produces dampness is the same, leading to the body to appear sticky around the body, especially the elderly are very prone to phlegm evil blocking the meridians, and some accidents, including cerebral thrombosis and myocardial infarction.