9. Bell Peppers
Did you know bell peppers have more vitamin C than oranges? They also contain vitamin B-6, folta, and beta-carotene. There are antioxidants in bell peppers that help protect your eyesight.
10. Onions
Onions contain sulfur compounds, which have been linked to preventing cancer. They have vitamin C, B-6, and manganese. Certain compounds in onions have been linked to reduce stomach and prostate cancers.