Wu Wenbo Shijiazhuang City Hospital of Traditional Chinese Medicine, Hebei Province
Basic information on onions
Onions are a traditional Chinese medicine (recorded in the Chinese Pharmacopoeia) and are also commonly used vegetables. It is the bulb of lily family onion Allium cepa.
Chinese medicine believes that : onions are pungent, sweet, warm in nature; enter the liver meridian; effects: invigorate the stomach, regulate qi, detoxify and kill insects. Indications: eating less abdominal distension, trauma, ulcers, trichomonas vaginitis, etc. Usage and Dosage: Oral administration: raw or cooked food, 30-120g. External use: appropriate amount, mashed compress or mashed juice applied. Note for use: It is not suitable for patients with itchy skin, eye disease and stomach disease.
Western medicine believes that : Nutritional ingredients include: protein, calcium, iron, phosphorus, selenium, B vitamins, vitamin C, vitamin E, crude fiber, carbohydrates, etc. The active chemical components are mainly sulfides, flavonoids , benzene Propanols, steroidal saponins, nitrogen-containing compounds and prostaglandins, etc. It has the effects of invigorating the stomach and eliminating food, clearing heat and diuresis, lowering blood sugar, anti-inflammatory and antibacterial, and can be used to treat hypertension , hyperlipidemia, coronary heart disease, atherosclerosis, diabetes, osteoporosis and esophageal cancer, etc., and can also regulate The body's physiological balance and metabolism.
Onions can be divided into white, yellow and purple . From the perspective of nutritional value, the nutrition of purple onions is better. This is because purple onions are more pungent than the other two varieties, which means they contain more allicin. In addition, the purple skin of purple onions contains more quercetin.
onion and "three highs"
"three highs" refers to hyperlipidemia , hypertension, and hyperglycemia in general. They are "diseases of wealth" derived from modern society. Eating onions often has the effect of preventing the "three highs"
onions contain the volatile fluid of diallyl disulfide compounds, which can lower blood lipids, prevent arteriosclerosis, myocardial infarction, and lower blood pressure.
onion is the only vegetable known to contain prostaglandin A. Prostaglandin A can dilate blood vessels and reduce blood viscosity, thereby lowering blood pressure, increasing coronary blood flow, and preventing thrombosis. Onions are rich in quercetin, and its bioavailability is very high. Scientists’ research report pointed out that quercetin may help prevent the oxidation of low-density lipoprotein (LDL), which can help atherosclerosis. Provide important protection. Therefore, onions protect the cardiovascular system and prevent coronary heart disease.
Onions contain xanthurenic acid, which can make cells use sugar better, thereby lowering blood sugar.
How to eat onions
eat raw: onions mixed with fungus; three cold salads: fried peanuts, diced onions, and diced cucumbers; Korean father Xingsen’s " onion small bowl " is also good.
cooked food: fried eggs with onion , or fried pork liver, or fried beef, or potato shreds.
However, patients with skin diseases, eye diseases, and gastrointestinal diseases cannot eat onions, which can easily lead to aggravation of the disease.
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