I've been using the P&Bs for years. The only time I had a noticeable problem was when I did a vinegar enema. It took weeks to get over the SEVERE pain that it caused. After adding the yogurt...the texture, color and the way I feel are different..not necessarily bad except that the pinkness worries me a little.
I tried oxycleanse for several weeks and I was very disappointed. It caused cramping and I almost didn't make it to the bowl in time on several occasions. No mucoid plaque ever came out, nothing that looked unusual...just liquidy stools.