The rational dietary principles for the prevention and treatment of coronary heart disease are as follows: 1. Reduce the daily intake of cholesterol. The intake of cholesterol should not exceed 300mg/day, or less than 100mg/per kilocalorie of total calories. 2, fat intake, should not exceed 30% of the total calories, of which saturated fatty acids should be controlled to account for less than 10% of the total calories. Increase polyunsaturated fatty acids, so that the ratio of saturated fatty acids to unsaturated fatty acids, polyunsaturated fatty acids should be 0 7:1:1. 3. Consume complex carbohydrates and eat less or no simple carbohydrates such as sucrose or glucose. 4.Total calories should be restricted within the standard amount to maintain body weight at the standard level. If overweight (standard body weight ± 5 kg is normal), the total calories should be further restricted or physical activities should be increased appropriately. 5, advocate eating more fresh vegetables and fruits, consumption of soy products, consumption of liquid vegetable oils. 6, try to eat less saturated fatty acids or cholesterol-rich fatty meat, animal oil, high-fat dairy products and egg yolks, animal offal and other foods. 7, do not soften the drinking water. 8, reduce sodium intake, sodium chloride, the intake of each person should first strive to achieve 10 grams / day below, the future can be reduced to 5g / day below the best. 9, drinking alcohol: do not drink or drink less, the daily amount does not exceed 30g.