1. Rich Source of Quercitin
The onion is the richest dietary source of quercitin, a potent antioxidant flavonoid. Quercitin has been shown to thin the blood, lower cholesterol, raise good-type HDL cholesterol, ward off blood clots, fight asthma, chronic bronchitis, hay fever, diabetes, atherosclerosis and infections and is specifically linked to inhibiting human stomach cancer.
2. Relieves Cough
Onion tea proved to be a good painkiller and an effective cough expectorant. Cut an onion into four and put it to boil until the water reduced slightly. For a better taste, you can add two to three teaspoons of honey.
3. Anti-Bacterial Properties
By eating a diet that is heavy in onions, you can boost your body’s natural protection system against bacteria. This will mean that you’ll be less likely to experience a variety of different types of infections.
4. Treats Anemia
Many types of onions are high in iron. Red onions in particular have the highest concentrations of iron. This can be helpful for a number of reasons. Iron helps to keep your blood the proper consistency and thickness. Onions can prevent anemia, or a general thinning of the blood.
5. Regulates blood pressure
If you have problems with your blood pressure try to eat onions. They lower blood pressure naturally, plus, they thin the blood and dissolve formed blood clots.