Spring onion is a popular spice in Vietnam and Asia. Spring onion are used in many dishes: such as salad, mannequin, salad, soup … Not only for food processing, Spring onions have many effects on health that many people don’t know. Scallions are one of the herbaceous plants that provide high nutritional value, in their essential oils provide a large amount of allicin, which has outstanding antibacterial effects: support digestion, good for bones, good for the heart, boost immunity, control blood sugar, prevent colds, fight cancer.