Whether hot and spicy or sweet and crunchy, there are enough peppers out there to suit anyone's taste, and they're all equally healthy for you. Spicy chile peppers have high levels of capsaicin, which interferes with your mind's pain receptors, and therefore act as natural painkillers. Capsaicin, which gives peppers their heat, has also been found to aid in weight loss by keeping your metabolism in check.
Sweet peppers have a similar compound called dihydrocapsiate that comes without the spicy kick of capsaicin but with the same effects on pain and weight loss. They also contain loads of vitamin C and beta-carotene. Toss a few spicy peppers into your next batch of tacos or Asian stir-fry; bell peppers retain most of their vitamins when eaten raw.