Good luck with your health This standard of judgment is desirable, but it does not mean that all vegetable oils are healthier than animal oils, depending on the fatty acid content of each oil. Duck oil is an animal oil, but it contains saturated fatty acids than vegetable oils in the palm oil is lower than nearly half, and monounsaturated fatty acids content than soybean oil, peanut oil to be higher. Palm oil is a vegetable oil, but it contains almost the same amount of saturated fatty acids as lard. So you can't generalize.
Questioner Then how to use oil scientifically in daily cooking?
Wishing you good health Nutritionists recommend that we use different oils for different cooking scenarios, rather than one oil for all. If you need to stir-fry or fry dishes at high temperatures, you can use peanut oil; cold dishes to eat, olive oil, tea oil, sesame oil are good choices; soybean oil, sunflower oil, corn oil is suitable for daily use in low-temperature stir-fry. Coconut oil and palm oil are not recommended at any time.
Wishing you well Oil also has a shelf life, the kitchen environment is also easy to make the oil oxidation, deterioration, so it is recommended to buy oil when buying small bottles of oil, use up the replacement of new oil. At the same time, it is best not to put the bottle of oil too close to the stove, so as not to shorten the "life" of the oil at high temperatures.