Manufacturers of green coffee extract in Austin, TX conducted a study in India on the effects of unroasted coffee beans on blood glucose. All participants were normal weight with normal blood sugar. All of them had results of lowered blood sugar when given supplements of green coffee extract, and these results should be even better for diabetics. The sugar-lowering effect is due to the concentration of chlorogenic acids, normally found in other fruits and vegetables. These acids are broken down in the roasting process, so coffee drinks have much less than in the supplements. With 26 million Americans with type 2 diabetes, there is much potential for a preventative or remedy for diabetics for less than a few dollars per day. More research must be done before any firm conclusions are made from this study.
Bordenave MD, Jorge. “Could Coffee Bean Extract Help Control Blood Sugar?” DrBordenave.com. Web. 29 May 2015.