Core content: What cooking oil do you eat in your daily life?
People take food as the sky, people must eat, and if you want to eat delicious food, the indispensable thing is cooking oil, which shows how indispensable cooking oil is for our households!
If you eat the oil at home, you will go to the supermarket or the market to buy, and find that the shelves are full of cooking oil, do you feel a little dizzy? So how should we choose edible oil?
In fact, in the use of edible oil in daily life, soybean oil is relatively cheap relative to the market price in all oils, and most rural families mostly use soybean oil.
However, the argument that eating soybean oil is harmful to the body has always existed, and the hot discussion on soybean oil on the Internet is very high, and some people say that soybean oil is an unhealthy edible oil, and it will cause certain harm to the body when eaten.
So, is there a scientific basis for claims like this? Check it out!
What oil is the unhealthiest? Soybean oil?
Just as the so-called "oil is not bad", Chinese cooking has always been indispensable to edible oil, used in daily life, mainly soybean oil and rapeseed oil, as well as lard, sunflower oil, sesame oil, etc., a variety of types.
Edible oil contains unsaturated fatty acids, glycerides, phospholipids, vitamins, free fatty acids and other ingredients, which can keep the skin moisturized, shiny, and provide plenty of calories and fat.
In addition, the sterols in vegetable oils have a health effect on the cardiovascular system.
In edible oils, vegetable oils have a lower melting point, easily absorbed, and higher content of unsaturated fatty acids than animal oils, while animal oils have high heat, stable structure, and produce fewer harmful substances after heating.
The most popular oil in ancient times in the mainland is soybean oil, the mainland has a long history of growing soybeans, it is rich in oilseeds, the taste is strange, but the yield of soybean cultivation is low.
Even now, they are still low-yield crops, but the advantage is that soybeans have little demand for fertilizer and are relatively drought-tolerant, which is most suitable for the climate of the northern region.
At that time, soybeans were planted in large quantities in the vast land of the Central Plains, and soybean oil was used as a daily oil for ancient people, and even now, in the northeast region, there are still people who eat soybean oil.
Among the fatty acids of soybean oil, the saturated one is generally 10%, and the remaining is unsaturated fatty acids, the former is mainly stearic acid and palmitic acid, and the latter is mainly oleic acid and linoleic acid.
In addition, the main ingredients are phospholipids, soybean oil sterol content of 0.38% ~ 0.53%, of which there are β - sitosterol, sterol and vegetable oil sterol, in addition, there are β carotene, vitamin E, cycloplana pineapple alcohol and squalene.
Soybean oil has a good fatty acid composition, saturated fatty acids, monounsaturated fatty acids and polyunsaturated fatty acids content is more balanced, and contains essential fatty acids - linoleic acid and linolenic acid, especially rare is containing about 10% omega-3 fatty acids - α - linolenic acid (except for rapeseed oil, bulk edible oil content is not high).
Soybean oil also contains a large number of vitamin E, plant sterols, its high content in bulk vegetable oil is also one of the few, very beneficial to human health, is a high nutritional value of excellent edible oil.
Doctor's reminder: Eat as little or no of these 3 oils as much as possible
- Trans fatty acids
Trans fatty acids are a type of unsaturated fatty acids, which are a general term for unsaturated fatty acids containing at least one trans configuration double bond, including monounsaturated trans fatty acids and polyunsaturated trans fatty acids.
Eating a large number of foods containing trans fatty acids will accelerate arteriosclerosis, which can easily lead to cardiovascular and cerebrovascular diseases, diabetes, coronary heart disease and Alzheimer's disease.
Food labels state that trans fatty acids are contained in any food labeled "artificial fat, artificial butter, margarine, margarine, vegetable fat powder".
Oils labeled "refined" or "refined" also contain a certain amount of trans fatty acids.
- Animal oil
Animal oil is generally solid, so it is generally believed that saturated fatty acids with high melting point are easy to solidify and precipitate on the blood vessel wall, resulting in arteriosclerosis; unsaturated fatty acids with low melting point are not easy to coagulate and precipitate on the blood vessel wall.
Middle-aged and elderly people, especially those with cardiovascular diseases (such as arteriosclerosis, hypertension, coronary heart disease, etc.) and diabetes, hepatobiliary diseases, eat vegetable oil better than animal oil.
Because vegetable oil can not only supply more essential fatty acids, but also contains unsaturated fatty acids, which have a good effect on preventing arteriosclerosis, and can reduce cholesterol after eating.
Therefore, people also call vegetable oil "the friend who exorcises the disease", therefore, it is recommended not to consume it for a long time to avoid causing arteriosclerosis and causing hypertension and coronary heart disease.
- Palm oil
Long-term consumption of palm oil can cause the body to consume too much fat, which can lead to obesity.
Moreover, after the fat period, it is difficult to lose people's physical fitness, because too much fat in the body will reduce people's physical fitness, and secondly, palm oil contains too many fatty acids, which is bound to cause high blood pressure, arteriosclerosis and other symptoms in the human body.