I thought your idea might not have merit until I started researching coffee online. I'm not sure whether coffee would provide any added benefit. Here is the link to the article. Scroll down to #9, Health and click on the link. It will take you to the section regarding the health benefits/non-benefits of coffee. Coffee does help to move fat through your body. The determining factor however might be how much coffee you drink on a regular basis, not how much you drink in a short period of time.

Hope this helps your research

Life is not a journey to the grave with the intention of arriving safely in a pretty and well-preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming, "WOW - What a Ride!" -- Unknown