At present, in addition to common soybean oil, rapeseed oil and peanut oil, there are blended oil, corn oil, sunflower oil, rice bran oil, tea seed oil, olive oil and sesame oil. Because the fatty acid composition and nutritional components of various vegetable oils are different, consumers with conditions can buy different kinds of edible oils to make the dietary fatty acid nutrition more balanced. From the point of view of nutritional balance, it is a scientific and reasonable method to replace eating with different varieties. Of course, it is also recommended to buy blended oil produced by brand enterprises. Eating it is better than eating it. Might as well buy blended oil. The difference of edible oil is that the main component of fatty acid edible oil is fatty acid, so it can be said that eating oil means eating fatty acid, and the biggest difference of edible oil is fatty acid, which is divided into saturated fatty acid, monounsaturated fatty acid and polyunsaturated fatty acid. The saturated fatty acid content of animal oil is high, vegetable oil is unsaturated fatty acid, rapeseed oil, olive oil and walnut oil are oleic acid, and soybean oil, corn oil and sunflower oil are linoleic acid. The linolenic acid content of linseed oil is relatively high, and the fatty acid content of various edible oils is also different. Therefore, edible oil experts suggest that families should choose edible oil. Of course, there are also edible oils on the market that can help people eat saturated fatty acids, monounsaturated fatty acids and polyunsaturated fatty acids with an average ratio close to1:1. Deep-sea fish oil is suitable for the development of baby's brain and nerves and needs a lot of fatty acids. For infants, the source of essential fatty acids is very single and can only be supplemented by breast milk and complementary food.