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Eating onions can cool off the heat! As long as it is eaten properly, it has appetizing effect, because onion contains volatile oil, its main component is allicin, and it also contains dienyl thioether and calcium oxalate, which gives off a unique spicy taste, secretes saliva and gastric juice and stimulates appetite. It can also remove moisture and summer heat in the body, which is very suitable for people to eat in hot and humid summer. The advantage of eating onions is 1. Lowering cholesterol Modern science has found that onions can lower cholesterol. Often eat onions, cholesterol is not easy to deposit on the blood vessel wall. Moreover, the onion leaf part contains more vitamins A, C and calcium than the white part. 2. It helps to improve long-term fatigue. Raw onions contain diallyl sulfide. When ingested together with foods containing more vitamin B 1, it will promote the conversion of starch and sugar into heat, which can relieve fatigue to some extent. Cancer disease, diet doctor allergy. 3. Enhance human immunity. The smell of onion comes from the volatile component of allicin, which can resist bacteria, help to resolve phlegm and relieve sore throat. It contains vitamin B2, vitamin C, nicotinic acid, calcium, phosphorus, manganese, selenium, beta-carotene, etc. Vitamin B2 and nicotinic acid belong to group B, which are indispensable nutrients for maintaining the brain, nerves and skin, especially vitamin B2 promotes growth, while nicotinic acid can maintain the health of skin and mucous membrane, which is very helpful for preventing colds. 4. Antioxidant and anti-aging The green part of onion is rich in β-carotene, which can protect the nasal and laryngeal mucosa and has antioxidant effect. The polyphenols and flavonoids contained in it can help the human body to resist oxidation and delay aging. Dietitians with cancer diseases are allergic. 5. Preventing constipation is rich in pectin (water-soluble dietary fiber), keeping the intestines moist to prevent constipation and reduce the risk of colorectal cancer. 6. Anti-cancer onion foods contain special smells, mainly from organic sulfides (propylene sulfide). These sulfides can increase the activity of enzymes that remove carcinogens in the body and relatively reduce the chance of cancer in the body. Pectin contained in onion has anticancer effect and can significantly reduce the incidence of colon cancer. Allicin in onion can also inhibit the growth of cancer cells. Onion also contains trace element selenium, which can reduce the nitrite content in gastric juice and play a certain role in preventing gastric cancer and various cancers. Precautions for eating onions People who are prone to fever, inflammation, eye problems and bad stomach should be especially careful when eating. For example, onion is an irritating food, which contains sulfur-containing amino acids, so it can't be eaten with honey, otherwise the compound formed will * * * the stomach and make people have diarrhea. Dietitians with cancer diseases are allergic, and when they have conjunctivitis, dry eye, stye or glaucoma, they should not eat too many onions, otherwise their eyesight will be damaged. In addition, people with itchy skin and allergies who eat too many onions may also induce allergic substances in the body. Improper object 1. Onions have a sweating effect, and people with heavy body odor and sweating should not eat more onions. Cancer, disease, diet, doctor's allergy. 2. The constitution belongs to internal heat and external deficiency, and people who are prone to night sweats, frequent hot cough and dry mouth are not suitable for eating onions. 3. Patients with gastrointestinal diseases. People suffering from gastrointestinal diseases, especially peptic ulcer, should not eat more. Do you have any other health problems? Headlines focus on southern health, and doctors and consultants in top three hospitals continue to provide you with professional health knowledge! # 个个个个个个个个 # Disclaimer: The above content comes from the Internet, and the copyright belongs to the original author. If there is any infringement of your original copyright, please let us know and we will delete the relevant content as soon as possible.