What's the function of pears?
1. Pear contains fructose and glucose, which has the functions of protecting liver, promoting digestion and stimulating appetite, and can be used as an auxiliary diet for patients with hepatitis and liver cirrhosis.
2. Pear has certain curative effect on enteritis, goiter, constipation, anorexia, dyspepsia, anemia, urethral swelling, urethral calculus, gout and diseases caused by vitamin A deficiency.
3. Eating pears raw can relieve symptoms of yin deficiency such as dry throat, itching, dry cough, polydipsia and hot flashes caused by upper respiratory tract infection. Therefore, teachers, broadcasters and singers often eat pears, which can prevent noise and prevent laryngeal cancer, lung cancer and nasopharyngeal cancer.
4. Pear contains a variety of vitamins, potassium and calcium, which has the functions of lowering blood pressure, clearing away heat, calming and diuresis, and has a certain therapeutic effect on dizziness, palpitation and tinnitus associated with hypertension and heart disease.
5. Pear has the effects of reducing fire, clearing heart, moistening lung, resolving phlegm, relieving cough, relieving fever, relieving sore and hangover. Eating regularly can supplement human nutrition. Pear is especially suitable for patients with hepatitis, tuberculosis, constipation, acute and chronic tracheitis, upper respiratory tract infection, hypertension, heart disease and esophageal cancer.
Studies have found that eating pears after meals can prevent cancer?
Researchers have found that eating a pear or drinking a cup of hot pear juice after a meal can discharge a lot of carcinogens accumulated in the human body. The survey results show that polycyclic aromatic hydrocarbons (PAHs), which are strong carcinogens, will be significantly reduced after eating pears, especially after drinking heated pear juice.
In the experiment, the researchers compared the volunteers who ate pears after barbecue with those who didn't eat pears. The carcinogen 1- hydroxypyrene was quickly excreted in 24 hours, but the total amount of 1- hydroxypyrene excreted in 120 hours was slightly lower than that of volunteers who didn't eat pears.
In addition, after heat treatment, the polyphenol content and antioxidant capacity of pears can be significantly improved.
Therefore, researchers believe that pears can reduce the accumulation or production of polycyclic aromatic hydrocarbons metabolites in human body. Taking pears as dessert after barbecue is a Korean tradition and an ideal way to prevent polycyclic aromatic hydrocarbons from causing cancer.
Nutritionist: That's not very reliable.
Eating pears after meals can reduce the risk of cancer. This statement has some basis, but it is not accurate. It is found that people who eat pears have lower content of polycyclic aromatic hydrocarbons and related metabolites than those who don't eat pears, so eating pears will naturally feel better. However, if you look closely, you will find that this experiment is mainly to study the metabolic process and source of metabolic waste, not to prove how magical pears are.
Fruits and vegetables can indeed reduce the risk of cancer, but from the current research, pears have no obvious advantages compared with other kinds of fruits and vegetables, so it is not necessary to regard them as a panacea for cancer. After eating smoked food such as barbecue, you can eat some foods rich in antioxidant substances such as vitamin C, vitamin A, flavonoids and theobromine, such as fruits rich in vitamin C, water-colored vegetables, onions, broccoli, soybeans, coffee and green tea, which can slightly reduce the risk of cancer.
In order to prevent cancer, it is essential to pay attention to balanced nutrition, avoid obesity and reduce exposure to pollutants. It is unrealistic to rely solely on any kind of food to prevent cancer. Carcinogenesis and cancer prevention are comprehensive factors, and we can't just look at one side.
Suggestion: It is best to eat pears raw on an empty stomach.
Eating pears after meals is actually not very scientific. Fruits like pears are recommended to be eaten raw on an empty stomach and can be placed between meals.
Pears can get rid of dampness and fire, but some people are not suitable for eating more. Because pears are cold and help dampness, eating too much will hurt the spleen and stomach, so people with spleen and stomach deficiency, people who are afraid of cold, children and the elderly should eat less. Pears contain more fruit acid, and those with more stomach acid should not eat more. Pears are high in sugar, so people with diabetes should use them with caution. In addition, try not to eat when you have diarrhea.
Eating pears after meals has the effect of detoxifying and moistening the lungs, which is understandable, but when it comes to cancer prevention, we must have a solid experimental foundation and not blindly follow.
Taboos for eating pears
1, pear-like cold helps dampness. Eating too much will hurt the spleen and stomach, so people who are deficient in spleen and stomach and are afraid of cold should eat less.
2, pears contain more fruit acid, more stomach acid, don't eat more.
3, pears have diuretic effect, frequent urination at night, eat less pears before going to bed.
4. Patients with blood deficiency, chills, diarrhea and cold hands and feet should not eat more pears. It is best to cook them before eating them to prevent the symptoms of dampness and cold from getting worse.
5. Pears have high sugar content and should be used with caution by diabetics. Patients with chronic enteritis and stomach cold disease should not eat raw pears.
6. Pear contains a lot of fruit acid, which should not be used with alkaline drugs, such as aminophylline and baking soda.
7. To relieve cough and resolve phlegm, it is not advisable to choose sweet pears with too high sugar content.
8. Pears should not be eaten with crabs to prevent diarrhea. Because pears are sweet, slightly sour, cold, crabs are salty, cold and slightly toxic. Both are cold products, and eating together hurts the stomach.
9. Drinking hot water and eating greasy food when eating pears will lead to diarrhea.
10, it is not suitable for people with loose stool caused by deficiency and cold of spleen and stomach and cough with white phlegm caused by exogenous wind and cold. Do not use it after delivery and after the baby has acne.