Grease is considered "culprit" by some hyperlipidemic patients and many elderly people with hyperlipidemia either eat very little or eat less oil.Recently, the American Heart Association (AHA) issued a statement saying that eating too much Less or not to eat is not scientific, while reducing the intake of saturated fatty acids, while increasing the intake of unsaturated fatty acids, on the contrary may help to reduce blood lipid levels and cardiovascular and cerebrovascular events.
Edible oil contains a variety of fatty acids needed by the human body: saturated fatty acids and unsaturated fatty acids.Overexpressed saturated fatty acids, can easily lead to elevated blood lipids and cardiovascular disease; unsaturated fatty acids are divided into monounsaturated fatty acids and polyunsaturated fatty acids Two types, they provide the necessary energy of the body, monounsaturated fatty acids and omega -3 polyunsaturated fatty acids can also regulate blood fat.University Tufts University study found that inadequate intake of polyunsaturated fatty acids can lead to heart-related diseases increase.
Generally, unsaturated fatty acids are mostly found in vegetable oils, among which, the content of monounsaturated fatty acids is higher in tea seed oil, rapeseed oil and olive oil.Soybean oil, corn oil, sesame oil, safflower oil and flaxseed High levels of polyunsaturated fatty acids such as oil and sunflower oil, peanut oil in between, and saturated fatty acids in animal oils such as lard, butter and tallow.
Drip in oil will make the elderly suffering from hyperlipidemia lack of essential fatty acids, leading to skin diseases, gastrointestinal tract and liver and kidney abnormalities, but also makes the body can not absorb fat-soluble vitamin A and vitamin D, malnutrition. Or should eat some of the unsaturated fatty acid-based fats, the daily edible oil control in about 25 grams .Chinese adult dyslipidemia guidelines (2016Revised) clearly states that dyslipidemia should be the preferred olive Oil, camellia oil as cooking oil, and more intake of foods rich in omega -3 polyunsaturated fatty acids.
Oil can not be too single, you can put different fatty acids for food, such as peanut oil and soybean oil, rapeseed oil for food. And cooking oil temperature can not be high, high cholesterol patients can eat more cooking, salad. , Different oil to eat is not the same, peanut oil, tea seed oil suitable for cooking; soybean oil, corn oil, sunflower oil and other suitable stew; sesame oil, linseed oil is best used to make salad.
China Center for Disease Control and Prevention, Nutrition and Food Safety Associate Professor Zhang Qian suggested that the three points is very important to buy edible oil: look at the label, pay attention to the label on the name of edible oil, processing technology, grade and production date. Soybean oil will be marked whether to use Genetically modified raw materials. Look at the brand, try to choose a good brand reputation, because the oil metamorphism, and the raw material susceptible to aflatoxin contamination, so the supervision of the entire production process is particularly important.Other depends on the appearance, the ambient temperature above 20 ℃ , The appearance of vegetable oil is clear and transparent, not turbid, no sediment, no suspended solids, the temperature below 20 ℃, peanut oil may have some precipitation, suspended solids, is a normal phenomenon.
