Eating chili peppers may make you feel like you’re melting, so it’s no surprise that the active ingredient in chilies, capsaicin, actually has been shown to melt body fat. But newer research shows that capsaicin has another benefit: boosting nitric-oxide production. Researchers from the Third Military Medical University in China supplemented rats with capsaicin for six months and reported in an issue of the journal Cell Metabolism that the rats receiving capsaicin had lower blood pressure because of higher NO production compared to the rats receiving a placebo. Because NO helps promote muscle growth, taking capsaicin can help you get yoked and ripped. Look for products that contain 40,000 to 90,000 Scoville heat units per dose, and take one dose 30 to 45 minutes before lunch, dinner and workouts.