When Danish researchers asked achy people to jazz up their diets with ginger, it eased muscle and joint pain, swelling and stiffness for up to 63 percent of them within two months. Experts credit ginger's potent compounds called gingerols, which prevent the production of pain-triggering hormones. The study-recommended dose: Add at least 1 teaspoon of dried ginger or 2 teaspoons of chopped ginger to meals daily.