Onion is used for cooking purposes by almost all the people. Not only does the vegetable lend an excellent taste to dishes, but is also associated with imparting a number of health benefits to its users. In fact, onions are said to have therapeutic, antibacterial, ant fungal and loads of other beneficial properties. Onions are in the same family as garlic. People who regularly eat onions have lower blood sugar. Onions are also thought to be helpful in preventing cancer, especially colon cancer. You can dice them and add to soups, stews and heaps of dishes. You can bake the onions separately or with veggies to serve with baked meats. Cut them in thick slices and serve Asian style with Asian veggies. It contains Vitamin A and Vitamin C.