i've noticed my lack of appetite being related to the flow of bile from the liver being restricted more than anything else. if something is blocking things up and affecting appetite, i would of thought it is in or around the crucial bile duct area of the colon.
things that might give immediately benefit - LBB (mentioned), coffee (from either end) and a liver flush (providing you are already on some anti-parasite stuffs). apple juice itself is also good for loosening up junk in the colon.