1, sunflower oil
Sunflower seed oil is an oil extracted from sunflower seeds. Sunflower seed oil is a healthy edible oil rich in linoleic acid. According to Professor Cao Wanxin from Xi 'an Petroleum Research and Design Institute of the State Grain Reserve Bureau, in the 20th century, cardiovascular and cerebrovascular diseases such as coronary heart disease, stroke, cerebral thrombosis, arteriosclerosis, hypertension and other diseases have increased, and long-term consumption of appropriate oil products can greatly improve the above symptoms.
Sunflower seed oil is an excellent healthy oil. Sunflower seed oil has become the first choice for consumers and chefs, and its consumption in the world ranks third among all vegetable oils. Sunflower seed oil is 90% unsaturated fatty acid, of which linoleic acid accounts for about 66%, and it also contains vitamin E, phytosterol, phospholipid, carotene and other nutrients. Therefore, sunflower seed oil is also a healthy oil suitable for middle-aged and elderly people.
2. Tea oil
More than 90% of the world's tea oil production comes from China, and the unsaturated fatty acids in tea oil are as high as 85%-97%, which contain certain physiological active substances such as tea polyphenols and thearubin that olive oil does not have. Regular consumption of tea oil by the elderly can effectively improve cardiovascular and cerebrovascular diseases, lower cholesterol and fasting blood sugar, inhibit the increase of triglycerides, and also have obvious effects on inhibiting cancer cells.
3. Corn germ oil
Corn germ oil is an oil extracted from corn germ. The fatty acid content in corn oil is as high as 80% ~ 85%. Corn oil itself contains no cholesterol, which can dissolve cholesterol accumulated in blood, thus reducing the hardening effect on blood vessels. It has positive preventive and therapeutic effects on senile diseases such as arteriosclerosis and diabetes.
Due to the function of natural vitamin E complex, it has obvious curative effect and preventive effect on heart disease, thrombophlebitis, reproductive dysfunction, muscle atrophy and nutritional encephalomalacia. So corn oil is also very suitable for middle-aged and elderly people.
4. Olive oil
Olive oil is made from fresh olive fruit by direct cold pressing. Without heating and chemical treatment, it retains natural nutrients and has high nutritional value for human body. In the west, olive oil is known as "liquid gold" and "Mediterranean manna" because of its excellent natural health care effect. Olive oil is the best edible oil for middle-aged and elderly people, especially those with three highs and cardiovascular diseases. This is because olive oil is rich in monounsaturated fatty acids, polyunsaturated fatty acids ω-3 fatty acids and ω-6 fatty acids. These monounsaturated fatty acids and polyunsaturated fatty acids, which are beneficial to human body, have a very significant effect on lowering blood pressure and blood sugar and preventing cardiovascular and cerebrovascular diseases.
5. Soybean oil
Soybean oil is an oil extracted from soybean, which is often called "soybean salad oil" and is one of the most commonly used edible oils. Soybean oil can provide ω-3 unsaturated fatty acids (linolenic acid), which is more than tea oil. Linoleic acid is the only ω-3 unsaturated fatty acid among the three essential fatty acids. It can synthesize fish oil in human body and participate in human immune regulation. Linolenic acid has the function of reducing blood lipid and blood viscosity, which has long been recognized by nutritionists all over the world. So soybean oil is also healthy.
From a health point of view, olive oil is the best, but it is expensive and not suitable for cooking. In terms of taste, peanut oil is the best, and the food beyond it is rich in flavor. Soybean oil is the worst. One reason is that soybean oil is mainly made from foreign genetically modified soybeans, and whether it is harmful to human body is hotly debated. Soybean oil is mostly extracted by chemicals, and harmful substances will remain.
The sales of sunflower oil have been increasing in recent years. The main reason is that sunflower oil contains a lot of unsaturated fatty acids, which is beneficial to reduce blood lipid and prevent cardiovascular diseases. Its cooking flavor is slightly worse than peanut oil, but it is not inferior to other oils, and its price is also lower than peanut oil. Generally speaking, sunflower seed oil is the best.