I'd agree here – given the nature of the digestive system, and the different things that are absorbed at different points across the digestive tract, I'd say that throwing it all in, ready for the body to soak up is probably a bad idea.

Further, you don't really know what the hell you're doing to all 100 trillion of the little beasties living in your gut by drinking that stuff. We're really a very carefully balanced system for homeostasis and shortcuts rarely appreciate the subtlety and complexity of the system they are shortcutting.