Bell peppers contain an impressive amount of vitamin C with up to as much as six times as oranges. Bell peppers are also packed with vitamin A and beta carotene which can help boost the immune system, improve vision, and help protect the eyes against cataracts. They are also an excellent source of potassium, fiber, thiamine, beta carotene, folic acid, zeaxanthin, and lycopene and have been shown to help prevent blood clot formation and reduce the risk of heart attacks and strokes.