Onion is hailed as the queen of vegetables, what are its nutritional values?

  As people's living standards continue to improve, and with people's growing awareness of onions, onions appear on the dining table more and more frequently. Once people recognized the extremely high nutritional value of onions, they became very popular as a dish. Especially in Europe and America, where onions are highly regarded, onions are rated as the "queen of vegetables" in the eyes of people in Europe and America, which shows that the nutritional value of onions is remarkable.