An onion is a widely cultivated vegetable from the Allium cepaspecies, known for its strong flavor and smell. It is used in a wide variety of cuisines worldwide as a fresh, cooked, or garnishing ingredient and is a source of vitamins, minerals, and fiber. Onions also have historical medicinal uses, though these require more scientific evidence for efficacy,

Other uses and considerations

• Medicinal uses: Historically, onions have been used for issues like scarring, asthma, and high blood pressure, but scientific evidence for these uses is limited. Applying onion extract to scars may help improve their appearance.
• Botanical facts: Onions are herbaceous biennial plants that grow underground as bulbs.
• Crying: The process of cutting onions can cause your eyes to water due to certain chemical compounds they contain