People take food as the sky, we will use edible oil when cooking food, and we can not do without cooking oil for almost every meal, but in recent years, people have paid more and more attention to food safety issues, and more and more attention to health, so about the use of edible oil, everyone is paying more and more attention.
In the past, the conditions were not good, almost all households used lard, but now lard is almost all eliminated, we will go to the supermarket to buy vegetable oil, but there are more kinds of vegetable oil on the market, many people do not know how to choose, and some people say that soybean oil is the most unhealthy oil, is there any scientific basis for this statement?
01
Why is lard eliminated now?
Lard is different from other vegetable oils, has a special aroma, can enhance appetite, but the fatty acids contained in lard are mostly saturated fatty acids, cholesterol content is relatively high, saturated fatty acids in triglycerides content is also relatively high, which can easily cause high blood lipid problems.
And our Chinese cooking pays attention to rapid stir-frying, which is very important for the control of oil temperature, the boiling point of lard is relatively low, and the oil will be harmful to the body after boiling, so this lard is not as good as vegetable oil.
In addition, lard is solid, it is not as fast as vegetable oil when stir-frying, and now there are almost no lard at home, so it is more convenient for everyone to go to the supermarket to buy ready-made vegetable oil.
02
What oil is "most" unhealthy? Soybean oil?
The claim that "soybean oil is the least healthy" stemmed from an animal study in the United States that designed three controls to study the effects of soybean oil, fructose and coconut oil on obesity and other complications in mice.
Based on the experimental results, the researchers concluded that soybean oil was more likely to cause mice to gain weight, develop diabetes, and have a greater potential effect on the liver than coconut oil and fructose.
Soybean oil is more cost-effective, the study found that soybean oil contains more vitamin E and vitamin D and rich lecithin, and the absorption rate of soybean oil is also relatively high, soybean oil contains essential fatty acids for the human body, often eat this oil, in fact, it is beneficial to health.
The linoleic acid and unsaturated fatty acids contained in soybean oil can help reduce blood lipids and cholesterol, and can also reduce the risk of cardiovascular and cerebrovascular diseases.
Soybean oil contains bean phospholipids, more beneficial to the development and growth of brain nerves and blood vessels, soybean oil contains palmetto, acid linoleic acid, linolenic acid, vitamin E, vitamin D and other nutrients, with very high nutritional value and dietary health care effect.
03
Doctor reminds: these 3 kinds of oil, don't buy it for the New Year
1. Cheap blended oil
Blended oils are mixed with more than two refined oils, and some people may think that this oil is higher in nutrients and more nutritious, but we cannot determine the proportion of blended oils, and many blended oils are made from genetically modified oils or inferior oils.
Everyone can also compare the price of blended oil from the price point of view is the cheapest, so in normal times, you should not often eat blended oil, especially if you see the words "genetically modified blended oil" on the package, you can't buy it.
2. Self-pressed oil
Many people think that self-pressed oil is a real material and prefer to buy such oil, and some people will take their own materials to small workshops or small factories for processing.
However, we need to pay attention to the fact that the general environmental sanitation conditions in these places are not up to standard, and there are some small workshops in the ingredients, in fact, have not changed, there may be aflatoxin excess of the health hazards, if you often eat such oil, may cause liver damage unauthorized liver cancer, so in normal times it is best to buy oil produced by large manufacturers.
3. Gutter oil
Gutter oil refers to all kinds of inferior oil in life, its source may be grease floats in the sewers, leftovers in restaurants can also be expired inferior pork, pig offal, pork skin, etc., repeatedly fried food oil, etc.
Gutter oil contains many pathogenic and carcinogenic toxic substances, long-term may cause cancer, in fact, the country's crackdown on gutter oil in recent years is very strong, but there are still some people on the edge of the law infinite temptation.
04
How to choose a better quality oil?
Look at the nutrition facts
When we buy edible oil, we can look at the nutrients, fat content and vitamin E content of high oil is the best quality oil, we can also look at the cholesterol content and sodium content in it, preferably all 0.
Look at the quality grades
Look at the quality grade when buying edible oil, generally edible oil is divided into 4 grades, the first and second levels are processed through multiple procedures, the color is relatively light, the oil smoke is relatively small, the degree of refining of the third and fourth grades is relatively low, the color of the oil is darker, and the impurity content inside is more, so the oil smoke is relatively large when stir-frying.
Look at the ingredient list
If the raw materials in the ingredient list are genetically modified edible oil, do not buy, although there are no studies showing that genetically modified foods have an impact on the human body, but everyone should eat less.
Processing technology
Edible oil in the production process, mainly through two processes to produce, one is the pressing method, the other is the removal method, in the face of these two edible oils, we try to choose the pressing method, because this is obtained by pure physical means, can maximize the guarantee that the nutrients in the edible oil are not destroyed.