cayenne pepper

Photo: iStock

5 of 5
Swap Black Pepper for Cayenne Pepper

Around the world, spicy cayenne pepper has traditionally been used to ease digestion and relieve pain. Some scientists believe its main ingredient, capsaicin, could be a cancer fighter; one study in The Journal of Clinical Investigation found that capsaicin reduced the risk of colorectal cancer in tumor-prone mice, extending their life-span by 30 percent (human trials are next). Plus, a study in the International Journal of Obesity showed that capsaicin can help increase satiety and reduce fat intake—the perfect reason to bring the heat to your next meal.