One large raw onion has only 63 calories, is made up of more than a cup of water, and provides up to 20% of your RDA of vitamin C. Do you tear up when slicing one? Try chilling the onion in the ...

The onion, also known as the bulb onion or common onion, is a vegetable that is the most widely cultivated species of the genus Allium. The shallot is a botanical variety of the onion. Until 2010 ...