Vitamin C and other nutrients in onion help to check cancer and also enhance skin and hair. The blood sugar levels are largely controlled by onion extracts and it also boosts immunity, sex drive and anemia control.
Onions are vegetables, which have the scientific classification of Allium cepa. They are rich in antioxidant compounds that are very effective in neutralizing the free radicals present in the human body. They have been used for decades by human beings for medicinal purposes.
Onions have many valuable medicinal applications because it acts as a rich source of nutrients, vitamins, minerals, and organic compounds. These include the presence of sulfuric compounds and quercetin which are essential for health.These vegetables also contain mineral components such as calcium, magnesium, sodium, potassium, selenium, and phosphorus and they are a good source of vitamin C, vitamin B6, and dietary fiber.
Red onions are the most effective in destroying breast and colon cancer cells. Onions have a powerful compound called quercetin that plays a significant role in preventing cancer.
One of the sulfur compounds present in onions (S-methylcysteine) and quercetin can have beneficial effects on controlling the blood sugar level in the body. Chromium, also present in this root vegetable, may help regulate blood sugar.
Quercetin (and other flavonoids) in onions helps in preventing inflammation. Onion also helps the treatment of allergies by preventing the cells from releasing histamine.Antihistamine properties of quercetin can also aid in reducing nasal congestion. The antibiotic effects of onion accelerate wound healing.
The sulfur in onions improves the health of the lens of the eye thus aiding in vision. It stimulates the greater production of a protein named glutathione, which acts as an antioxidant and reduces risk of glaucoma, macular degeneration, and cataracts.The selenium in onions supports the vitamin E in the eye (which protects the cells in the eye).Onion extracts can also aid in preventing the development of corneal haze and onion juice can also be used as eye-drops.
Onions contain a rich source of thiosulfinates and thiosulfonates (the sulfur compounds) that help scale down bacteria that cause tooth decay.The vegetable is also enriched in vitamin C that keeps the teeth healthy.Onions can relieve tooth pain.
Rich in antibacterial and antifungal properties, onions help to nurture hair and proliferates its growth. The rich sulfur content and antioxidants prevent thinning and breakage and premature greying. They fight dandruff and assist in blood circulation that helps in hair growth.
Antioxidant rich onions bind with the harmful toxins in the brain and flush them out of the body.The extracts of onions have been found to maintain the hippocampus. Another sulfur-compound in onions, named di-n-propyl trisulfide, improves memory impairment and lower down age-related memory loss. Onions are also believed to treat dizziness, epilepsy, and vertigo.
Onions are crucial for other benefts also, like treatment of fever, easing menopause symptoms and reducing oxidative stress. The phytochemicals in onions along with their vitamin C help improve immunity. Raw onion lowers the production of bad cholesterol (LDL). Onion juice also provides immediate relief from the pain and burning sensation. It is also used for skin problems.
Onion might slow blood clotting and might increase the risk of bleeding when taken as a medicine. Onion might lower blood sugar. Overconsumption of onions for diabetic patients can be harmful. Onion might increase the risk for bleeding or interfere with blood sugar control during and after surgical procedures.
It is believed that onions originated in Asia. Although the exact location is not known, it is assumed that onions are native to West Pakistan and Iran. The onion plant has a fan of hollow, bluish-green leaves and its bulb at the base of the plant begins to swell on reaching a certain day-length. The bulbs are composed of shortened, compressed, underground stems surrounded by fleshy modified scale (leaves) that envelop a central bud at the tip of the stem. In the autumn (or in spring), the foliage dies down and the outer layers of the bulb become dry and brittle. The crop is then harvested and dried and the onions are ready for use or storage.