Capsaicin can increase thermogenesis, a process where the body generates heat, which may lead to a temporary increase in metabolism and calorie burning.
Capsaicin has pain-relieving properties. It can desensitize pain receptors, which is why it's used in topical pain relief creams.
Contrary to popular belief, in moderate amounts, red chili powder can stimulate the secretion of digestive juices, aiding in digestion. It can also help to reduce gas.
Some studies suggest that capsaicin may help lower LDL ("bad") cholesterol and improve blood circulation.