Found this article that seemed to cite some reliable sources and do some impressive math:
The conclusion seemed to be that you would have to stand in the shower for 2 hours with the soap on your skin to absorb the equivalent of 2 cups of coffee.
Run! Just Run!
Trail Runner Nation Podcast
Well, that's not going to be a time saver.
© 2013 RunningAHEAD, LLC. All rights reserved.