I have to say when I done the flush ..I had no stones to pass but the pain in my side has completely disappeard. Luck!!! well maybe .. but I truly think the flush will not hurt anyone and has helped many... but that is just my opinion though.....I would rather take something natural into my body than a pill I know nothing about ..how about you...? Or have radiation beamed into my body through maybe and (x-ray)..hehe oh well ..if your theory is right then why didn't I pass any stones....??????? and why did you..????HHHHHHHMMMMMM ..