It also contains large amounts of chromium and vitamin C, which is very useful for our body. If you eat a raw onion daily at the morning, you will protect from different types of health issues. 

1. Fight with cancer. 

According to one study, onions are the most effective at destroying cancer cells in the breast and colon. Onions have high levels of Quercetin and anthocyanin, two, compounds that contribute to this characteristic. Onions activate the pathways that cause the death of cancer cells. They make the environment unfavorable to the communication of cancer cells, which inhibits their growth. It was also found that people consuming the most onions had the lowest cancer rates.

2. Lower blood sugar levels. A study has shown that onion extract can help reduce blood sugar. One of the sulfurs compounds onions and Quercetin may have beneficial effects on blood glucose. 

3. Good for oral health Onions contain thiosulfinatos and sulfur compounds that help reduce the bacteria that responsible for tooth decay. Better to eat raw onion because cooking can destroy some of these beneficial compounds. The vegetable is also rich in vitamin C which can keep your teeth healthy. It is also thought that onions can reduce dental pain. However, there is less research on this. But one of the disadvantages of onions is that they can cause bad breath. Therefore, wash your mouth thoroughly after eating onions, especially if you are going to a social gathering. 

4. Prevent blood clots. Onions contains a compound called rutin which can help prevent blood clotting. Clots are produced in the arteries, and veins; in the arteries, the clots are rich in platelets, while in the veins, they are rich in fibrin. The ruin on onion helps to block an enzyme which is released very quickly when blood clots form. 

5. Improve sexual health. Onions are one of the medicinal herbs used to control sexual impotence and erectile dysfunction. Even otherwise, we know that vegetables have benefits for men. Regular Taking onion juice with honey is known to increase fertility in men.

6. Improve Heart Health.Flavonoid in red onions can contribute to heart health. Onions are also rich in organosulfides, which can help prevent heart disease. According to a study, the ingestion of organic sulfur compounds in onions could reduce the risk of cardiovascular disease. Onions contain thiosulfinatos that act as natural anticoagulants and reduce the risk of heart attack and stroke. 

7. Improves brain health. Research suggests that antioxidants in onions bind to harmful toxins in the brain, and eliminate them from the body. And the sulfur-containing compounds in onions can decrease the memory loss associated with aging. Onion extracts were found to maintain the hippocampus. However, some of these anti-memory properties may be lost during cooking. So best practices eating raw onion regularly.