In the West, tea is a beverage; in China, it is medicine. "The Chinese consider tea a grease-cutter," says San Francisco-based Efrem Korngold, LAc., O.M.D. "It protects against harm from fatty meals." Western science seems to be catching up to this idea. In a study conducted by the USDA, volunteers received five servings of tea daily or a placebo; after three weeks, the tea group's cholesterol dropped 6.5 percent. And a Dutch study found that people who drank one or two cups of tea daily had significantly lower risk of heart disease than non-tea drinkers. Drink one to four cups a day, or as much as you enjoy. A cup of tea has approximately half the caffeine of a cup of instant coffee, and one-fifth the caffeine of brewed coffee; however, jitters and insomnia are still possible. By the way, green tea and black tea come from the leaves of the same plant—steaming the leaves produces green tea, while fermenting them yields black—and both may help ward off heart disease.