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Onion
You might relegate onions to the list of old-fashioned kitchen standbys, as you can slice and dice them into everything from home fries and soups to omelets and casseroles.
But onions can lend your dishes a powerful nutritional punch in addition to their trademark flavor. These pungent bulbs are rich in fiber, minerals, and vitamins C and B6. Scientists are interested in onions' abundant polyphenol and sulfur-containing compounds, such as quercetin and allyl sulfides, that may lower the risk of some cancers and help maintain heart health and immune function.
洋蔥
你大概會把洋蔥歸為老式餐點佐料，因為什么菜都可以加點洋蔥切片，你可以炸洋蔥圈，燉洋蔥湯，煎洋蔥燴蛋，還能把它扔到砂鍋里去煮一煮。
但洋蔥不僅能在菜品里加入它自身獨特的味道，還能提高營養價值。這些氣味嗆鼻刺眼的東西富含纖維素、礦物質、維生素C和維生素B6。科學家感興趣于洋蔥所富含的多酚以及含硫化合物，比如槲皮素和硫化丙烯，它們或許能降低某些癌癥的患病風險，維護心臟健康和免疫功能。
