Onion is a vegetable that belongs to the Allium genus. It is known for its characteristic pungent aroma and strong flavor. Onions come in various colors, including white, yellow, and red, and they are used in a wide range of culinary dishes worldwide. They can be consumed raw, cooked, or pickled. Onions are not only used to add flavor to dishes but are also known for their potential health benefits, such as providing essential nutrients, antioxidants, and anti-inflammatory properties.