I believe IBS and GERD are related. Back up pressure from IBS (gas or C or spasms) does not allow food out of stomach fast enough so it refluxes up in my case. My doc said I have to keep my bowels moving to prevent the reflux. Makes sense to me--the old clogged pipe theory!Question for Mark--you said you "had chronic heartburn forever. In the mid 80s developed IBS-D. Finally finished off with acid reflux (like cherry on top of the sundae, I guess). All conditions have been successfully treated for years by one supplement." What is the name of the supplement that worked for you to rid reflux and heartburn?