Yep...many people confuse fiber with laxatives...thinking that it will take care of their constipation and only end up getting more blocked! That's why I caution people to get things regularly moving before they do the p&b cleanse...and also be prepared to use enemas or colonics to keep them moving if they slow down! Psyllium and mag citrate do very different things...mag citrate won't get the plaque out and can create problems with dehydration and electrolyte imbalance...just like Epsom Salts ...see the thread on electrolytes.