Never mind the tears they bring on—onions are an ace ally in your fight against disease. A prized member of the lily family, they lavish you with health benefits while adding oodles of taste to your food. The phytochemicals in onions improve the working of Vitamin C in the body, thus gifting you with improved immunity. Onions contain chromium, which assists in regulating blood sugar. For centuries, onions have been used to reduce inflammation and heal infections. Do you enjoy sliced onions with your food? If yes, rejoice! Raw onion encourages the production of good cholesterol (HDL), thus keeping your heart healthy.