Sinking stool after Paragone cleansing

I just completed a 15-day course of Paragone parasite cleansing. The product was easy to take; if you dillute the liquid component with water it has a slight wooden taste.

As far as I can tell, I have not pass any parasites but I have noticed one strange effect. Normally, the stool floats in the water, but after a Paragone course it sinks to the bottom of the toilet bowl. Can anyone explain that?