Beware of the ＂trap＂ of cooking oil, so that you can choose oil healthily.

Ten delicacies, seven or eight are inseparable from cooking oil. Rapeseed oil, blended oil, peanut oil, linseed oil, olive oil … The shelves of edible oil in the supermarket are really dazzling. It’s hard to choose one, so as to save trouble, I want to keep an eye on it and buy it in the future!

The expert shook his head after listening: oil should be changed to eat! There are still many patients with basic diseases such as hypertension and hyperlipidemia who are very confused. When buying edible oil, how to choose?

Chief physician Ren Jingjing from the Department of General Medicine, the First Hospital of Zhejiang University gives you four tips for popularizing science and buying edible oil healthily.

Choose healthier press oil.

Squeezing oil is the oil obtained by physical squeezing from plant seeds. The advantage of this method is to retain the fragrance and nutrition of crude oil, but the disadvantage is that the oil yield is lower and the price is more expensive.

Some oils are suitable for stir-frying, and some oils are "toxic"

During heating, some oils will produce odor and smoke smell quickly, while others are relatively stable, producing little odor and smoke smell, which is related to the smoke point of oil.

The lower the smoke point of oil, the easier it is to decompose when heated, the easier it is to cause nutrient loss, odor and smoke smell, and release some harmful substances such as free radicals. Such oils, such as linseed oil and olive oil, are more suitable for dish decoration or salad mixing. However, lard, butter and sunflower oil have higher smoke points, so they are more suitable for continuous high-temperature cooking.

Use oil correctly and have better health.

Experts suggest that adults should consume no more than 25 ~ 30 grams of oil per person per day (accounting for 25% ~ 30% of total energy). Excessive intake of oil will lead to diseases such as hyperlipidemia and hypertension, and don’t always stare at an oil. Because of the diversity of eating oil, it can meet the needs of human body for a variety of fatty acids and vitamins, thus helping us to eat oil healthily according to the needs of different nutrients.

Obese people such as hypertension and hyperlipidemia choose corn oil.

The nutrition of corn is mainly concentrated in corn germ, so corn germ oil is a very good health care oil.

Corn germ oil retains the nutrition and fragrance of corn germ, and has a refreshing and non-greasy taste, as well as a faint corn fragrance. It contains up to 86% unsaturated fatty acids, and the human body’s absorption and digestion rate is over 98%. The content of vitamin E in the oil is also higher than that of ordinary vegetable oil, and it is rich in lecithin and carotene, which can reduce blood cholesterol and soften arterial blood vessels. It is an ideal edible oil for patients with hypertension, hyperlipidemia, coronary heart disease, fatty liver, obesity and the elderly.

However, although corn oil is good, experts also suggest changing oil frequently, with balanced nutrition and good health.