Over the past few years we have supplied small amounts of green coffee to the Vanderbilt Coffee study. Word leaked out early from the self described "lab rats" of the beneficial effects they were finding coffee provides us. Holly Edwards recently wrote about this in the Tennessean: "

• It's an antioxidant, absorbing destructive molecules linked to heart disease and cancer.
• By combating depression and elevating mood, coffee can reduce the risk of suicide and prevent drug and alcohol addiction relapse.
• Its ability to increase blood flow to the brain has been linked to prevention of degenerative brain diseases such as Parkinson's disease and Alzheimer's disease.
• It can prevent diabetes by enhancing the liver's ability to metabolize sugar.
• Smokers who drink it regularly have a lower risk of developing bladder cancer than smokers who are not coffee drinkers."

Lighter roasted coffees provide more antioxidants than darker roasts. Perfectly logical since the lighter roasts maintain/contain more of the original organic compounds as opposed to the darker roasts which contain more and more carbon.

Source: Vanderbilt University's Institute For Coffee Studies
Article in The Tennessean by Holly Edwards here.   And here