Four Misunderstandings should be avoided in vegetable oil
misunderstanding one: olive oil is the most expensive, so the nutritional value is also the highest
it is difficult to extract olive oil, and the labor value of its production is high, so the price also rises. Of course, olive oil has many advantages, for example, it can soften blood vessels, play a preventive role in cardiovascular and cerebrovascular diseases, and reduce the blood sugar content of diabetic patients and prevent cancer and senile amnesia. Olive oil can also promote the growth of epithelial tissue, which can be used for the protection of burns and scalds without scar. Olive oil has the highest vitamin content, and the Omega - 3 fatty acid contained in olive oil is also irreplaceable.
even so, you can't eat olive oil only because every vegetable oil has its own unique features, so the best choice is to change all kinds of oil to eat. Other vegetable oils such as sunflower oil, soybean oil and corn oil are also outstanding. They are rich in unsaturated fatty acids, which can enhance the immunity of the body, improve the skin condition, accelerate the healing of the gastric ulcer, reduce the blood pressure and cholesterol. It is a necessary material for the normal operation of the brain.
misunderstanding two: refining is the guarantee of the quality of plant oil
refining (including refining and deodorization) process can remove the unpleasant smell of plant, and can remove the toxic substances into the seed because of the improper preservation. But while removing these impurities, many vitamins and other substances that are beneficial to the body are also lost.
in fact, refined oil is more beneficial to manufacturers because they are not easy to oxidize, that is to say, they can be kept better and longer. Moreover, the refined residue is also a good income for manufacturers, for example, they can sell some of the material filtered out from the oil to the confectioner's dessert factory as an antioxidant and so on.
misunderstanding three: always say goodbye to animal oil
people think that eating animal oil is easy to cause coronary heart disease, obesity and so on, so the favor of vegetable oil, in fact, this is very one-sided.
animal oil (excluding fish oil) contains saturated fatty acids, which can lead to arteriosclerosis, but it also contains beneficial polyaenic acid and lipoprotein, which can improve the nutrition and structure of intracranial arteries, anti hypertension and prevention of cerebral apoplexy. As a lipid, lard also has the functions of satiety, protecting skin and maintaining body temperature, protecting and fixing organs.
light edible vegetable oil will increase the amount of peroxide in the body, combine with human protein to form lipofuscin, and deposit in organs will promote aging. In addition, the increase of peroxide will also affect the absorption of vitamins and increase the incidence of breast cancer and colon cancer. Peroxide can also form on vascular walls, liver and brain cells, causing arteriosclerosis, cirrhosis, cerebral thrombosis and other diseases.
the correct way to eat is vegetable oil, animal oil or alternatively eating, the ratio is 10:7. Mixed use of animal and vegetable oils will also help prevent cardiovascular diseases. Vegetable oil contains unsaturated fatty acids, which is beneficial to prevent arteriosclerosis. Therefore, using 1 portions of animal oil and 2 vegetable oils to make mixed oil can complement each other.
myth four: oil with "no cholesterol" is a good oil
"no cholesterol" is just an advertising term. In vegetable oils, it is impossible to have no cholesterol in principle. In biochemistry, cholesterol and its derivatives are the basic components of all organism structures. The demand for animals is huge, and for plants, it can not be completely useless.
cholesterol can not be removed from the oil in the process of refining vegetable oil. However, in vegetable oil, the amount of cholesterol is relatively low compared with the lard and butter, and it is known that the cholesterol content of the animal oil is about 10 to 25 times that of the vegetable oil. But even so, it can not be said that vegetable oil is basically "do not contain cholesterol"!