What are the benefits of eating onions for middle-aged people?

　　Middle-aged people face physical and life stress, and their physical functions begin to decline. Diet and health are very important. So what are the benefits of onions for middle-aged people?

　　Onions, also known as green onions, shallots and jade green onions, are native to Southwest Asia and have been used as vegetables for 5,000 years. In Europe and the United States, onions are known as the "Queen of Vegetables." A famous Japanese medical professor believes that regular consumption of onions can stabilize blood pressure and reduce blood vessel fragility for a long time, and has a good protective effect on human arteries and blood vessels.

　　According to measurements, every 100 grams of onions contains 40 mg of calcium, 50 mg of phosphorus, 1.8 mg of iron, 8 mg of vitamin C, and also contains carotene, vitamin B1 and niacin. In addition, onions also contain prostaglandin A, diallyl disulfide and sulfur amino acids. Among them, prostaglandin A is a strong vasodilator, which can reduce the resistance of the human body's peripheral blood vessels and cardiac coronary arteries, fight against catecholamines and other pressurizing substances in the body, and has the effect of lowering blood pressure and preventing thrombosis. Substances such as diallyl disulfide and sulfur amino acids have unique functions of resisting vascular sclerosis and lowering blood lipids. After research, it was found that Hyperlipidemia After patients eat onions for a period of time, their cholesterol, triglycerides and lipoproteins can be significantly reduced.