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How long is the shelf life of olive oil?
The shelf life of olive oil is generally two years.

Introduction of olive oil

Olive oil is made from fresh olive fruit by direct cold pressing, without heating and chemical treatment, and retains natural nutrients. Olive oil is considered to be the most suitable oil for human nutrition among the oils found so far.

Olive oil and olive pomace have a history of thousands of years in Mediterranean coastal countries. They are known as "liquid gold", "queen of vegetable oil" and "Mediterranean manna" in the west because of their excellent natural health care effect, beauty effect and ideal cooking use. Edible high-grade olive oil is a natural juice extracted from fresh or mature olives by physical cold pressing process. Olive pomace (extracted by chemical method) is one of the woody plant oils for human consumption in the natural state in the world.

Second, efficacy.

1, crack prevention

Experts advise all pregnant mothers to apply proper amount of olive oil to the skin around the nipple every day two weeks before delivery and one week before delivery. Because many new mothers often have chapped nipples during lactation, this has a lot to do with the lack of elasticity and dryness of the skin around the nipples. As long as olive oil is often applied to the skin around the nipple before delivery, its elasticity can be effectively enhanced, thus preventing the nipple from chapping.

Moreover, regular application of olive oil can also soak the old skin and dirt on the nipple, which can not only prevent the nipple from chapping, but also make the colostrum flow out more smoothly.

Step 2 prevent stretch marks

Many pregnant women will find circles of stretch marks of different sizes on their stomachs and breasts after delivery. Experts pointed out that this is due to the enlargement of the uterus during pregnancy, which leads to the expansion of skin cells. So many pregnant women are troubled by these stretch marks. In fact, stretch marks can be removed, but it takes some time and methods. But many pregnant women don't know that it can actually prevent the formation of stretch marks during pregnancy. This method is olive oil.

Before skin cells and tissues spread, pregnant women can often apply olive oil to their abdomen and chest at this time. After a period of time, you will find that the skin elasticity is obviously enhanced, thus effectively preventing stretch marks.

Step 3 treat constipation

Many pregnant women often have constipation during pregnancy for various reasons. Long-term constipation is very unfavorable to pregnant women and fetuses. At this time, pregnant women may wish to drink a small cup of olive oil in the morning and evening to effectively relieve and treat constipation. In addition, pregnant women should pay attention to the habit of drinking more water, so that the dry stool will be greatly improved.

4. Promote blood circulation

Olive oil can prevent arteriosclerosis and its complications, hypertension, heart disease, heart failure, renal failure and cerebral hemorrhage. In the book Omega Health and Simple Longevity Plan written by Dr. Artemis Simopoulos, it is mentioned that omega -6 fatty acids in edible oil will make arteries contract, forcing the heart to work overtime, leading to high blood pressure. Omega-3 fatty acids in olive oil can increase the content of nitric oxide (an important chemical) and relax your arteries, thus preventing arterial injury caused by high blood pressure. In addition, omega-3 fatty acids can also prevent thrombosis from two aspects. First of all, it can reduce the viscosity of platelets, so that platelets and fibrinogen are not easily entangled; Secondly, omega-3 fatty acids can reduce the amount of fibrinogen and greatly reduce the probability of thrombosis.

5. Improve the function of digestive system

Olive oil contains unsaturated fatty acids higher than any vegetable oil, rich in fat-soluble vitamins such as vitamins A, D, E, F, K, carotene, antioxidants and other ingredients, and contains no cholesterol, so the human body's digestion and absorption rate is extremely high. Has the effects of reducing gastric acid and preventing gastritis and duodenal ulcer. It can also stimulate bile secretion, increase pancreatic enzyme activity, degrade oil, and be absorbed by intestinal mucosa, thus reducing the occurrence of cholecystitis and gallstones. It also has the function of moistening intestines, and can effectively relieve constipation after long-term consumption.

6, protect the skin

Olive oil is rich in squalene and essential fatty acids with excellent affinity to skin, which can be absorbed quickly and effectively keep skin elastic and moist; Olive oil is rich in monounsaturated fatty acids, vitamins E, K, A, D and phenolic antioxidants, which can eliminate facial wrinkles, prevent skin aging, protect hair and prevent chapped hands and feet. It is an edible beauty and skin care product. In addition, applying olive oil to the skin can resist ultraviolet rays and prevent skin cancer.

7. Improve the function of endocrine system

Olive oil can improve the metabolic function of the body. This is because olive oil contains more than 80% monounsaturated fatty acids and omega-3 fatty acids, and DHA in omega-3 fatty acids can increase insulin sensitivity. The higher the content of unsaturated fatty acids in cell membrane, the more double bonds and the stronger the activity. DHA with six double bonds is the most unsaturated fatty acid, which makes the cell membrane the most active. The more insulin receptors on the cell membrane with strong activity, the more sensitive it is to insulin. When the human body ingests a proper proportion of fatty acids, the metabolism will be more normal, and the probability of obesity and diabetes will be reduced. The latest research results show that the glucose content of healthy people can be reduced by 12% after eating olive oil. Therefore, olive oil has become the best edible oil to prevent and treat diabetes.

8. Benefits to the skeletal system

Natural antioxidants and omega-3 fatty acids in olive oil help the human body absorb minerals such as calcium, phosphorus and zinc, and promote bone growth. In addition, omega-3 fatty acids help to maintain bone density and reduce osteoporosis caused by free radicals (highly active molecules).