Fresh vegetables, fruits and coarse grains are rich sources of vitamins and dietary fiber. Vitamins, especially vitamin C, have a certain influence on lipid metabolism, which can accelerate the conversion of cholesterol to cholic acid and enhance the absorption of dietary cholesterol. Foods rich in vitamin C mainly include green leafy vegetables, oranges, oranges, red fruits, jujubes and so on. Dietary fiber can prevent constipation, promote acid excretion in feces, thus reducing the cholesterol content in blood, thus playing a role in preventing and treating coronary heart disease. Eat more vegetable protein food. Eating more soy protein can lower blood cholesterol. Therefore, when we require a low-fat and low-cholesterol diet and certain nutrition, we should control the daily intake ratio of plant protein and animal protein at about 3: 1.