1. Vegetables and fruits contain vitamin C, β-carotene, folic acid and so on. It is vital to the human body. One of the important functions of the above nutrients is to reduce the incidence of heart disease and various cancers.
Second, fish has a relatively low fat content and contains more unsaturated fatty acids, which plays a certain role in preventing blood lipid increase and vascular diseases. Compared with pork and beef, fish has lower fat content and more reasonable fatty acid composition.
Third, whole grains can provide more B vitamins, minerals, dietary fiber and other nutrients, that is, healthy plant compounds. Beans are rich in high-quality protein, essential fatty acids and vitamin E, and contain soybean isoflavones, phytosterols and other plant compounds. Nuts are also rich in lipids, polyunsaturated fatty acids, protein and other nutrients, which are beneficial supplements to the diet.
4. Olive oil contains a lot of monounsaturated fatty acids, which can not only provide heat energy for human body, but also adjust the ratio of high-density lipoprotein and low-density lipoprotein cholesterol in human plasma, improve the level of high-density lipoprotein and reduce the level of low-density lipoprotein.