Obese people are very prone to hyperlipidemia, because the liver synthesizes and releases cholesterol and triacylglycerol much faster than normal people. According to the chemical structure, the fat in the diet can be divided into saturated fatty acids, monounsaturated fatty acids and polyunsaturated fatty acids, among which saturated fatty acids can easily lead to the increase of blood lipids and cause heart disease. Unsaturated fatty acids have a certain protective effect on cardiovascular system, which can reduce cholesterol in blood and triglyceride plaque on the wall of large blood vessels. The higher the degree of unsaturation, the stronger the protective effect. In animal meat, dairy products (especially cream), animal fat (especially lard and cattle and sheep suet)

It contains more saturated fatty acids. Plant foods, such as peanut oil, rapeseed oil, olive oil and nuts, contain more unsaturated fatty acids. It should be noted that although vegetable oil contains more unsaturated fatty acids, it is still oil, and its heat is extremely high, so it cannot be used at will.

Cholesterol only exists in egg yolk, animal brain, liver, fat layer of meat, caviar, cream products and other animal foods, so the total amount of these foods should be reduced when choosing foods.

Dieters with hyperlipidemia should stick to a low-fat diet. The total fat in the daily diet should not exceed 50g, and the edible oil 15 ~ 20g. It should also be noted that "invisible" fat should not be consumed too much. Choosing seafood and bean products instead of some terrestrial animal meat is conducive to lowering blood lipids.

Dieters should increase dietary fiber and foods rich in vitamin C, and the diet should contain more coarse grains, vegetables and fruits. In addition, some foods such as onions, garlic, mushrooms, fungus, kelp, seaweed, konjac and other foods have certain lipid-lowering effects.