In fact, coffee shows more antioxidant activity than green tea and cocoa, two antioxidant superstars. Scientists have identified approximately 1,000 antioxidants in unprocessed coffee beans, and hundreds more develop during the roasting process. Numerous studies have cited coffee as a major — and in some cases, the primary — dietary source of antioxidants for its subjects.
How it works: Antioxidants fight inflammation, an underlying cause of many chronic conditions, including arthritis, atherosclerosis and many types of cancer. They also neutralize free radicals, which occur naturally as a part of everyday metabolic functions, but which can cause oxidative stress that leads to chronic disease. In other words, antioxidants help keep us healthy at the micro-level by protecting our cells from damage. Finally, chlorogenic acid, an important antioxidant found almost exclusively in coffee, is also thought to help prevent cardiovascular disease.