Seven benefits of eating apples: "An apple a day" is a well-known health slogan. Indeed, apples are rich in sugars, organic acids, cellulose, vitamins, minerals, polyphenols and flavonoids, and are called "all-round healthy fruits" by scientists. So, what health care function makes it win such a good reputation? ★ Prevention of cancer A study by Hirosaki University in Japan confirmed that polyphenols in apples can inhibit the proliferation of cancer cells. A study in Finland is even more exciting: flavonoids contained in apples are an efficient antioxidant, not only the best vascular cleaner, but also the bane of cancer. If people eat more apples, the risk of lung cancer can be reduced by 46%, and the risk of other cancers can also be reduced by 20%. The latest research by the French National Institute of Health Medicine also tells us that proanthocyanidins in apples can prevent colon cancer. ★ Strong bone apples contain mineral elements boron and manganese that can strengthen bones. A study in the United States found that boron can greatly increase the concentration of estrogen and other compounds in the blood, which can effectively prevent calcium loss. Medical experts believe that if menopausal women can consume 3 grams of boron every day, their calcium loss rate can be reduced by 46%, and menopausal women eat more apples, which is beneficial to the absorption and utilization of calcium and the prevention and treatment of osteoporosis. ★ 70% of diseases that maintain acid-base balance occur in people with acidic constitution, and apples are alkaline foods. Eating apples can quickly neutralize excessive acidic substances in the body (including acid produced by exercise and acidic metabolites produced by acidic foods such as fish, meat and eggs), and enhance physical strength and disease resistance. ★ Antioxidant effect The research team of Cornell University in the United States soaked the brain cells of mice in a liquid containing quercetin and vitamin C, and found that the antioxidant capacity of brain cells was significantly enhanced. Compared with other fruits and vegetables, quercetin in apples is the best, and red apples are better than yellow apples and green apples. Therefore, apples are the best food for patients with Alzheimer's disease and Parkinson's disease. ★ The human experiment of Japan Fruit Research Institute showed that after eating two apples a day, the triglyceride level in the blood of the subjects decreased by 265,438+0% after three weeks, and the high triglyceride level was the chief culprit of arteriosclerosis. After apple pectin enters the human body, it can combine with bile acids, absorb excess cholesterol and triglycerides like a sponge, and then excrete it. At the same time, the acetic acid decomposed by apple is beneficial to the catabolism of these two substances. In addition, vitamins, fructose and magnesium in apples can also reduce their content. ★ Excessive sodium for lowering blood pressure is an important factor causing hypertension and stroke. Apples contain enough potassium, which can be combined with excess sodium in the body and excreted, thus lowering blood pressure. At the same time, potassium ion can effectively protect blood vessels and reduce the incidence of hypertension and stroke. Dr Susan Arlich, a famous British pharmacologist, found that polyphenols and flavonoids contained in apples can effectively prevent cardiovascular and cerebrovascular diseases. ★ Losing weight apples will increase satiety, and eating before meals can reduce food intake and achieve the purpose of losing weight. "An apple a day keeps the doctor away. Among many fruits, apple is the most common and peaceful one, but its nutritional value should not be underestimated. Chinese medicine believes that it can "promote fluid production and moisten the lungs, strengthen the spleen and stimulate appetite"; Nutritional analysis shows that apple contains the most fructose, and contains a variety of organic acids, pectin and trace elements. Apple pectin belongs to soluble fiber, which can not only promote cholesterol metabolism, effectively reduce cholesterol level, but also promote fat excretion. The French did an experiment in which a group of healthy middle-aged men and women ate two or three apples a day. A month later, their cholesterol levels were measured, and it was found that 80% of people's low-density lipoprotein cholesterol (LDL, also called bad cholesterol) decreased. At the same time, high-density lipoprotein cholesterol (HDL is good cholesterol) has increased. Apple's help to the cardiovascular system can be seen. Potassium, a trace element contained in apples, can dilate blood vessels, which is beneficial to patients with hypertension. Zinc is also necessary for human body. When lacking, it will lead to disorder of blood sugar metabolism and decline of sexual function. Eating apples raw can not only get the above benefits, but also regulate the stomach, because it is rich in fiber and helps to excrete. On the other hand, it is good for people with diarrhea to eat it, because malic acid has a astringent effect, but it should be noted that if it is chronic diarrhea with spleen and stomach deficiency and cold, apples must be wrapped in tin foil, cooked or simmered before eating. Apples are rich in nutrition and low in calories, so they are very popular with dieters. In dietotherapy, boiling water with apple peel and ginger slices can stop vomiting. Using apples with pears can reduce the coldness of pears and have the effect of strengthening the lungs and moistening the stomach. In autumn syrup, some apples and pears are used, and lily 1 (30g), Dendrobium 5 (15g) and apricot 3 (9g) are added to moisten the lungs and relieve cough. As for whether to peel the apple, people have different opinions. Without peeling, it is possible to eat pesticide peeling. The most nutritious part of apples is the skin, and most of the fibers are peeled.