As the saying goes, food is the most important thing for people. When we fry, stir-fry, we basically use cooking oil, which is an indispensable edible product in our daily life. Cooking oil not only provides the human body with the required fatty acids and a variety of nutrients, but also can effectively improve the color, aroma, taste and taste of dishes and enhance appetite during the cooking process.
With the development of social economy and the continuous increase in living standards of modern people, many varieties of edible oils are constantly being born. At the same time, due to the increasing diversification and precision of consumer demand, the categories of edible oils have also shown a trend of segmentation. Sesame oil, olive oil, corn oil, flaxseed oil , soybean oil and other new oil products are constantly appearing on the people's tables.
Some people say that cooking oil is very unhealthy. Eating it frequently will cause certain damage to the human blood vessels. So is this statement reliable? Let’s learn about it together below.
1
What are the benefits of cooking oil to the body?
. Soybean oil: Soybean oil is rich in polyunsaturated fatty acids, vitamins, E and vitamin D. It can reduce cardiovascular diseases, improve immunity, and increase weight on weak and thin people. Soybean oil contains more polyunsaturated fatty acids, so it is most likely to be rancid and deteriorated among various oils. Therefore, when purchasing, you must choose one that has not been out of the factory and may eat it while it is "fresh".
. Corn oil: Corn oil is very easy to digest, the human body's absorption rate is as high as 97%, and the unsaturated fatty acid content in corn oil reaches more than 80%. Among them, linoleic acid is an essential fatty acid that the human body cannot synthesize itself. It is also rich in vitamin E. From the perspective of taste and cooking, corn oil is golden, transparent, and fragrant. In addition to being used for frying, it can be directly used for cold stirring.
. Olive oil: monounsaturated fatty acid contained in olive oil is the highest among all edible oils. It has the effect of reducing low-density cholesterol and improving high-density cholesterol , so it has the effect of preventing cardiovascular and cerebrovascular diseases , reducing cholecystitis, and gallstone .
Olive oil also contains vitamins A, D, E, K, carotene , which has a certain effect on improving digestive function and enhancing calcium, calming and delaying brain atrophy in the bones.
. Peanut oil: Peanut oil is rich in oleic acid , lecithin and vitamins A, D, E, K and natural polyphenols substances with strong biological activity. It can reduce platelet aggregation, reduce total cholesterol and bad cholesterol levels, and prevent arteriosclerosis and cardiovascular and cerebrovascular diseases.
5, sunflower seed oil : Sunflower seed oil is rich in essential fatty acids, among which linoleic acid and α-linolenic acid can synthesize DHA related to brain nutrition in the body. Pregnant women eat sunflower seed oil is beneficial to fetal brain development, contains vitamins E, A, etc., softens blood vessels, lowers cholesterol , prevents cardiovascular and cerebrovascular diseases, delays aging, prevents hepatitis, night blindness, and dry skin. Sunflower seed oil contains a higher number of nets and fatty acids, so there are the same precautions for Yu Yudou.
6. Salad oil: Salad oil is the highest-processed edible oil among vegetable oils. It basically removes all impurities and waxes in vegetable oils, so the color is the lightest. Salad oil is suitable for stir-frying, frying and cold-frying, which is beyond the reach of other edible oils.
7. Lard: Lard contains high saturated fatty acids. Eating too much can easily cause hyperlipidemia, fatty liver, arteriosclerosis, obesity, etc., but lard must be eaten because the cholesterol contained is the raw material for the human body to produce steroid hormones, adrenal cortex, hormone sex hormones and the synthesis of vitamin D by itself. The α-lipoprotein in lard can prolong life, which is lacking in vegetable oils.
2
What oil is the most unhealthy? Is it soybean oil? Reminder: These three types of oils should be removed from the dining table.
Soybean oil is extracted from soybeans. Vegetable oil is a very common edible oil. The extraction methods of soybean oil include pressing method and chemical solvent leaching method. No matter which type is a safe modern process. The soybean oil circulated online is produced by crude chemical solvents, which is a deliberate misinterpretation.
leaching method does use organic solvents when refining vegetable oil, but these solvents will be removed during the subsequent processing process. As long as they are formal and qualified leaching, they all meet the corresponding national standards, and the amount of residues is stipulated in the national standards.
According to the US Department of Agriculture database information, every 100 grams of soybean oil contains 15.6 grams of saturated fatty acids, 22.8 grams of monounsaturated fatty acids, 57.7 grams of polyunsaturated fatty acids, and 0.533 grams of trans fatty acids . The trans fatty acids referred to here are indeed unhealthy oils and can increase the risk of heart disease and stroke .
However, according to the existing recommendations, the calories obtained from trans fat every day should be less than 1% of the total calories. If the total calories a day are 2,000 calories, after conversion, that is, the trans fatty acids per day should be limited to less than two grams.
Therefore, if you eat 30 grams of soybeans a day and have trans fatty acids less than 0.2 grams, it is still in line with the overall health recommendation, rather than the "soybean oil is very harmful" as mentioned online. The monounsaturated fatty acids and polyunsaturated fatty acids contained in soybean oil are all healthy oils.
3
reminder: These 3 types of oils should be removed from the dining table
. Self-pressing oil: Self-pressing oil is a kind of "crude oil", which actually contains a large amount of impurities, which may contain heavy metal impurities. Since it is not further refined to crisp oil, the glycosides in mustard oil and erucic acid may exceed the standard. If it is not stopped in time and continue to eat it, the oil containing these substances will also affect fertility. Many oil-pressed materials may become moldy, so they will enter the oil during the pressing process. Therefore, for health, you should eat less or not eat self-pressing oil.
. Lard: Animal oil mainly includes the fat of pigs, cattle, sheep and other animals. The fat in animal oil is mainly saturated fatty acids, so regular consumption of these fats will cause health problems.
Studies show that if you eat a lot of animal oil. It will increase cholesterol in the blood, triglyceride , low-density lipoprotein, and when blood lipids increase, it will damage the endothelium of the vascular endothelium, leading to the accumulation of fat on the surface of the vascular endothelium. After a series of complex immune responses, the formation of arteriosclerosis is a high-risk factor for many cardiovascular diseases.
Since animal oil itself is a high-fat food, eat these foods for a long time. The stomach can be hard to afford, in real life. There are many people with gastrointestinal tract after eating animal oil. It will quickly worsen the condition.
. Trans fatty acids: All fatty acids have many synonyms such as hydrogenated vegetable oil , margarine, plant fat powder, etc. are all trans fatty acids. All foods with high fatty acid content mainly include snacks, milk tea, ice cream, hamburgers, fried chicken, etc., which are all popular. Any fatty acid metabolism is slow and easy to accumulate in the body. Long-term intake of large amounts of trans fatty acids will lead to obesity and increase the risk of cardiovascular disease.
