Effects: Onions are warm, sweet and pungent, and have the function of strengthening the spleen, eliminating food, regulating qi and stomach.　　It can be used to assist in the treatment of the spleen and stomach Yang deficiency caused by abdominal cold pain, no appetite and other symptoms. And from a modern nutritional point of view, onions contain bactericidal power of allicin and antioxidant trace elements selenium, in effectively stimulate the secretion of the digestive glands, enhance appetite, help digestion at the same time, but also help to eliminate free radicals in the body, to enhance the metabolism and anti-aging effect. Pam onions also contain prostaglandin A, often eaten to help expand blood vessels, reduce blood viscosity, in order to achieve lower blood pressure and lowering of lipids, to protect the cardiovascular purpose.　　Selection: to a large and heavy, scales closely, the outer skin glossy without damage, and pungent flavor is good.　　Food: raw sterilization cold effect is better, commonly used in Western cuisine with other vegetables when the vegetable salad, but also a variety of dishes commonly used in the garnish ingredients; cooked, with a variety of meats can be stir-fried or into the soup, but pay attention to the heating time should not be too long, so as not to destroy the bactericidal power of the strong garlic chili pigment, reducing the efficacy of consumption.　　Reminder: because of its flavor pungent, eaten raw breath, chewing peanuts or tea has a certain effect on the removal of breath. In addition, its nature is warm, the body bias damp and hot or Yin deficiency and fire hot people eat less.