1. It has the effect of dispersing wind and cold, because onion bulbs and leaves contain a kind of greasy volatiles known as propylene sulfide, with a pungent and spicy flavor, which is resistant to cold and has a strong bactericidal effect.

2. Nutritionally rich, and pungent odor. Can stimulate the stomach, intestines and digestive gland secretion, enhance appetite, promote digestion, and onion does not contain fat, its essential oil contains a mixture of sulfur compounds that can reduce cholesterol, can be used to treat indigestion, loss of appetite, food accumulation and internal arrest.

4. It has a certain refreshing effect, which can help cells better utilize glucose, while lowering blood sugar and supplying brain cells with heat energy.

6. The trace element selenium contained is a strong antioxidant, which can eliminate free radicals in the body, enhance cell vitality and metabolism, and has anti-aging effects.

7. It also contains a certain amount of calcium, which in recent years, scientists have found to improve bone density and help prevent osteoporosis.

8. Contains phytobactericides such as allicin, and thus has a strong bactericidal ability. It can prevent colds.