Onions contain antioxidants and compounds that fight inflammation, decrease triglycerides and reduce cholesterol levels — all of which may lower heart disease risk. Their potent anti-inflammatory properties may also help reduce high blood pressure and protect against blood clots.
It is common knowledge that chopping onions causes watery eyes. However, onions may also provide potential health benefits. These may include reducing the risk of several types of cancer, improving mood, and maintaining skin and hair health. As a good source of vitamin C, onions may support the building and maintenance of collagen. Collagen provides structure to skin and hair. When selecting onions, people should look for those that are dry and firm with little or no scent before peeling. Including onion in a dish is a great way to boost the flavor without adding calories, fat, or sodium. Onions are a staple in many kitchens and complement most dishes. People can use raw chopped onion in a sandwich filling or as a salad topping. This vegetable also makes a tasty addition to salsas and dips.