Fats include three major categories: triglycerides, cholesterol and phospholipids. According to their sources, fats can be divided into animal fats and vegetable fats, which are higher in fatty meats, lard, butter, vegetable oils and various nuts. Fat is one of the important energy supply substances in the body, and each gram of fat can provide 9 kcal. Patients often ask what a low-fat, low-salt diet is. Low-fat and low-salt diet is to eat less oil and salt. Now the standard of living has improved, meals fish and meat, oil as water, resulting in a sharp increase in hyperlipidemia, hypertension, coronary heart disease, diabetes and other patients, and there is a trend of youth. If you or your friends around you have high blood lipids or high blood pressure or suffer from coronary heart disease, diabetes, etc., it is recommended to exercise properly every day (30 minutes – 1 hour) 5-7 grams of salt per person per day, 7-15 ml of oil per person per day, eat less animal offal and food containing high fat, etc.