7.Raw Is Healthiest
You’ll get the most benefit from onions if you eat them raw. Dice and toss them in salads, omelets, or guacamole. Or add them sliced to sandwiches. You can lightly sauté onions to soften them a bit without losing too much of the good stuff. Cooked onions aren’t bad for you — they just don’t have as many nutrients.
8.Antioxidants
All onions have quercetin, a flavonoid or antioxidant compound. Quercetin has anti-inflammatory properties, helps your body make vitamin E, and protects it from many forms of cancer. Every onion has antioxidants, but red and yellow ones have more than white onions.
