Onions

Inland, it is a purely agricultural city, the air is clean and pollution-free, and irrigation water comes from the snow in Qilian Mountains. Onions are nutritious and have a spicy smell. It can stimulate the secretion of the stomach, intestines and digestive glands, increase appetite, and promote digestion. Onions contain no fat. The essential oil contains a mixture of sulfur-containing compounds that can lower cholesterol.

Onions are the only prostaglandin A known so far. Prostaglandin A can dilate blood vessels and reduce blood viscosity, which can lower blood pressure, reduce peripheral blood vessels and increase coronary blood flow, and prevent thrombosis. Against the action of boosting substances such as catecholamines in the body, it can also promote the excretion of sodium salts, thereby lowering blood pressure.