The onion is an all-rounder vegetable that is used in every dish and has a strong aroma and taste. It enhances the look and taste of every dish and is used in every household. In commercial food outlets also it is in high demand. It is not only good in taste but also has many nutritional facts as well. Onion is considered to have a lot of antioxidants, carbohydrates, sugar and fiber. It also has a high water content. It does not have any side effects and is absolutely safe for consumption by people of any age.