Dehydrated Red Onion Chopped

Red onions, in particular, contain anthocyanins — special plant pigments in the flavonoid family that give red onions their deep color. Multiple population studies have found that people who consume more foods rich in anthocyanins have a reduced risk of heart disease.

Benfits

Most of the benefits come from antioxidants. Research shows that one particular antioxidant, called quercetin, protects health in several ways. One study shows that quercetin fights inflammation and boosts the immune system. Research mainly conducted in labs has shown that onions may kill a wide range of bacteria.