Onion

• Improved heart health: Onions contain quercetin, a powerful antioxidant that can help lower blood pressure and cholesterol levels. They also contain sulfur compounds that have been shown to protect against heart disease.
• Reduced risk of cancer: Onions contain a number of compounds that have been shown to have anti-cancer properties. These include quercetin, sulfur compounds, and anthocyanins.
• Improved blood sugar control: Onions can help improve blood sugar control in people with diabetes. They contain soluble fiber, which can help slow the absorption of sugar into the bloodstream.
• Boosted immune system: Onions are a good source of vitamin C, an antioxidant that helps protect the body against infection. They also contain quercetin, which has been shown to boost immune function.