Red peppers can make a delicious addition to any meal, but serving them roasted really brings out their sweet, rich flavor. Peppers are an excellent source of many vitamins, such as vitamin A, E, C, B6 and B9, along with minerals such as folate and manganese. The vitamin C in red peppers is something that stands out. Research shows the average red bell pepper has over 300% the daily recommended amount of vitamin C. Compare that to an average orange that has about 90% the daily recommended amount. This high vitamin C content gives red peppers a powerful antioxidative effect, which scientists are researching as a way to alleviate arthritis.