Health Benefits of Coffee - MarketWatch video.

Coffee is not usually thought of as health food, but some recent studies suggest that it can be beneficial.

A 2005 JAMA meta-analysis concluded that habitual coffee consumption was consistently associated with a lower risk of Type 2 diabetes. However, caffeine, seems to have little to do with it. In fact, caffeine (C8H10N4O2) is the natural pesticide of coffee beans, paralyzing and killing insects that try to feed on them.

A Norwegian study found that women who drank 1-3 cups a day reduced their risk of cardiovascular disease by 24% compared with those drinking no coffee at all.

Antioxidants in coffee may decrease inflammation, reducing the risk of disorders related to it, like cardiovascular disease. A typical serving of coffee contains more antioxidants than typical servings of grape juice, blueberries, raspberries and oranges.

References:
Health Benefits of Coffee - WebMD.
Coffee as a Health Drink? Studies Find Some Benefits - New York Times, 2006.