with me, im 200 lbs, drink alot of water, and work out, and 2 weeks is always sufficient time to clean out without the use of anything.fiber and creatine are good for cleansing if you are pressed for time. i usually take psyllium husk pills, and cranberry pills just to be on the safe side.
that 7-day shit from gnc certifiably does not work. and i dont trust those drinks you get from head shops.
soup, you should be fine though. drink lots of water, eat yo fiber, and go for a few jogs and you should be straight