Lard belongs to animal oil and contains more fatty acids, which is not conducive to blood vessel health, so now people generally choose vegetable oil. Vegetable oils sold in supermarkets are bottled, such as corn oil, peanut oil and rapeseed oil.
When we buy cooking oil, we don't know which one to choose. Which is healthier, peanut oil, rapeseed oil or corn oil? Let's take a look together.
peanut oil
Peanut oil is an easily digestible edible oil. Proper consumption of peanut oil can reduce cholesterol content and prevent arteriosclerosis, hypertension and coronary heart disease.
Peanut oil is rich in vitamin E, choline and other ingredients. Proper consumption of peanut oil can enhance memory, delay the decline of brain function and contribute to anti-aging.
Selenium and resveratrol contained in peanut oil can reduce platelet aggregation, prevent cardiovascular and cerebrovascular diseases and help prevent tumor diseases. Vitamin K contained in peanut oil can stop bleeding.
If peanut oil is eaten in excess, it will cause excessive energy intake in the body and lead to obesity. At the same time, it will increase the risk of cardiovascular and cerebrovascular diseases and endanger health.
rap oil
Rapeseed oil is a transparent or translucent liquid squeezed from rapeseed, which gives off a pungent smell. Because it contains a certain amount of glucosinolates, it is one of the main edible oils in China.
Proper consumption of rapeseed oil can nourish and protect the liver, replenish blood and qi, improve immunity, enhance memory, stimulate appetite and promote digestion. Rich in linoleic acid, vitamin E and other unsaturated fatty acids, eating rapeseed oil properly can also help soften blood vessels and delay aging.
Rapeseed oil contains phospholipids, which can promote the development of blood vessels, nerves and brain, but the fat content is high, so people with hyperlipidemia and coronary heart disease usually eat as little as possible. Because rapeseed oil has a certain pungent smell, it is not suitable for cold salad.
corn oil
Corn oil is extracted from corn germ and contains unsaturated fatty acids, which can dissolve the accumulation of cholesterol and avoid arteriosclerosis.
Corn oil has positive preventive and therapeutic effects on arteriosclerosis and diabetes, and contains vitamin E. Corn oil has good stability and is suitable for fast cooking and frying food. Because corn oil tastes light, the dishes may not be as delicious as expected.
The oil has been left for too long.
Many families like to buy large barrels of cooking oil, which will take about 3~6 months after opening. Many people think that oil will not go bad and can be preserved for a long time, but this is not the case.
Edible oil has a shelf life. The shelf life of unopened edible oil can reach 18 months, but after opening, the shelf life of edible oil will be shortened to three months because of exposure to air.
It is recommended to eat edible oil within three months after opening. If edible oil goes bad, it will produce some harmful substances, cause adverse reactions of digestive system and even cause other diseases.
Self-squeezing oil
Many people think that only the original ecological things are the healthiest, so they will take peanuts or rapeseed to small workshops to refine edible oil, but it is not recommended for everyone to do so.
Because there is a certain safety hazard in self-squeezed oil, peanuts or raw materials are easily infected with Aspergillus flavus without formal quality inspection and improper storage.
Aspergillus flavus is a carcinogen, too much intake in the body will increase the risk of cancer, so for the sake of health, everyone should try to eat as little oil as possible.