The white onion is a type of tuber often recognized by the white coloration of its layers and the soft paper that surrounds it. It is one of the most common types of onions and has a fairly strong balance of hardness and sweetness when eaten raw.

White onions have a number of nutritional benefits, especially when eaten raw. Principally, it is an excellent source of dietary fiber and vitamin C. It also contains a substantial amount of vitamin B6 and a decent amount of potassium, although other fruits and vegetables can certainly provide higher amounts.