It is better for families to eat oils with high unsaturated fatty acid content for a long time. The use of unsaturated fatty acid cooking oil at home can supplement the body’s inability to synthesize certain unsaturated fatty acids, such as linoleic acid and linolenic acid; unsaturated fatty acids can also reduce the content of cholesterol and triglycerides, and appropriate consumption is also beneficial to human blood circulation. However, no matter what kind of oil you eat, you should not consume too much, and you need to control the amount of oil intake according to your personal situation, for example, people who are engaged in heavy physical labor or exercise a lot need to eat about 30 grams a day, and other people should preferably not exceed 25 grams. Different edible oils have their advantages, choose as needed. 1, olive oil: olive oil is not chemically treated, generally is directly extracted, high unsaturated fatty acid content, is more in line with the human nutritional needs of edible oils, especially suitable for cold use, but not for stir-fry use, and the price is relatively high; 2, canola oil: canola oil oleic and linoleic acid content is the highest in edible oils, its unique contains of rapeseed oil sterols, more easily absorbed by the body, its cholesterol content is lower, higher vitamin content, suitable for stir-fry, but contains erucic acid may not be good for the human body, it is recommended to choose erucic acid-free rapeseed oil; 3, peanut oil: peanut oil saturated fatty acid content is higher than other vegetable oils, stir-fry more fragrant, but less linolenic acid content, in addition, peanut oil processing process is easy to be contaminated with aflatoxin, it is recommended to buy regular Manufacturers of goods; 4, soybean oil: is the most commonly used cooking oil, rich in carotenoids, vitamin E, sterols and other nutrients, soybean oil stir-fry is very fragrant but relatively short shelf life, need to be used as soon as possible, and some of the soybean oil on the market have genetically modified products, mind the need to carefully select; 5, sunflower oil: high oleic acid content, and rich in biologically active tocopherols, but less linolenic acid content, in addition to Suitable for cooking, but also can be used in baking; 6, corn oil: the price is more affordable, and rich in vitamin E, its saturated fatty acids and unsaturated fatty acid content is high, but heat resistance is poor, not suitable for high temperature frying. In addition, some animal oils, such as lard, butter, etc., although the content of animal fat is high, but daily families can also occasionally consume a small amount once in a while to enrich the taste. Groups with high blood pressure, high blood fat and coronary heart disease need to minimize the amount of oil used and adopt a low-oil diet, while some oil-filled bottles with a scale can also be used to control the amount of oil used.