Soybean oil is rich in polyunsaturated fatty acids and vitamins E and D, which can reduce cardiovascular disease, improve immunity, and increase weight for weak and lean people. Soybean oil contains more polyunsaturated fatty acids, so it is the most prone to rancidity and deterioration in all kinds of fats and oils, so when buying it, be sure to select the factory soon, and eat it while it is “fresh” as much as possible. Corn oil Corn oil is very easy to digest, the absorption rate of the human body up to 97%. Corn oil contains more than 80% unsaturated fatty acids, of which linoleic acid is an essential fatty acid that cannot be synthesized by the human body, and is also rich in vitamin E. From the point of view of taste and cooking, corn oil is golden and transparent in color and fragrant, and can be used for frying, boiling and deep-frying, as well as for salad. Olive oil contains the highest monounsaturated fatty acid among all edible oils, which has a good effect of lowering low density cholesterol and raising high density cholesterol, so it has the effect of preventing cardiovascular diseases and reducing the occurrence of cholecystitis and gallstones. Olive oil also contains vitamins A, D, E, K and carotene, which are useful for improving digestive function, enhancing calcium deposition in bones and delaying brain atrophy. Peanut oil is rich in oleic acid, lecithin, vitamins A, D, E, K and natural polyphenols with strong biological activity, which can reduce platelet coagulation, lower total cholesterol and bad cholesterol levels, prevent atherosclerosis and cardiovascular diseases. Sunflower seed oil is rich in essential fatty acids, including linoleic acid and alpha-linolenic acid, which can be synthesized in the body as DHA related to brain nutrition, and sunflower seed oil for pregnant women is beneficial to fetal brain development. It contains vitamin E and A, which have the effects of softening blood vessels, lowering cholesterol, preventing cardiovascular diseases, delaying aging, and preventing dry eyes, night blindness and dry skin. Sunflower seed oil also contains high levels of polyunsaturated fatty acids, so it has the same caveats as soybean oil. Salad oil is the highest grade edible oil among vegetable oils. It has basically eliminated all impurities and waxes in vegetable oils, so it is the lightest in color. Salad oil is suitable for frying, deep-frying, pan-frying, and salad, which is not as good as other edible oils. Lard contains high saturated fatty acids, eat too much easily caused by high blood fat, fatty liver, arteriosclerosis, obesity and so on. But lard can not be eaten, because the cholesterol contained in it is the body’s production of steroid hormones, adrenocorticotropic hormones, sex hormones and their own synthesis of vitamin D raw materials. The alpha-lipoprotein in lard can extend the life span, which is lacking in vegetable oils.