Simply put, onion and garlic vegetables are rich in sugar, protein, minerals (such as sulfur, phosphorus and iron) and vitamin C, and some green vegetables, such as leeks, shallots and green garlic, also contain a lot of carotene. Garlic and vegetables also contain propylene sulfide and allicin, which can stimulate appetite, promote digestion and remove fishy smell. They are also antibacterial substances and can prevent and treat many diseases in medicine. In a word, onion and garlic vegetables are a kind of vegetables with high nutritional value and health care function!