Hmmm. You said for the purpose of cleaning out your body. Colon cleanse products would do that also. They aren't a "diet" per se, rather a limited time cleanse (i.e. maybe a 3 day, 5 day, etc.)
I have seen some posts on Colonix, which is a colon cleanse product.
I recently heard about Advanced Naturals HOPE formula - high fiber, omega-3 oils, probiotics and enzymes. I have not tried it, have no idea if it is good or not.
Maybe someone else can tell us more.
Good luck!