I asked about this very thing the other day.I had a colonoscopy and had to drink a gallon of stuff to get me cleaned out for it because of the diverticular pockets.That was May 2nd and their still like that.I think it must be a good sign that means we have really clean colons!And I'v eaten dark things such as pinto beans and my stools stay cream colored.Hope it stays that clean!Dot.