Don't go chomping on a handful of chili peppers just yet, but there may be help for hopeful dieters in those fiery little Native American fruits.A large percentage of the world's population — fully one third, by the World Health Organization's estimates — is currently overweight or obese. This staggering statistics has made finding ways to address obesity a top priority for many scientists around the globe, and now a group of researchers at the University of Wyoming has found promise in the potential of capsaicin — the chief ingredient in chili peppers — as a diet-based supplement.