Yes, this is a bigger problem than many people realize.

There is an emulsifier in some chocolate today-- not all brands have it, but Hershey's does...
This bothers me quite a bit:
http://en.wikipedia.org/wiki/Polygly...olyricinoleate

Then there are the Greek yogurts artificially thickened. Ruined my vacation 2 summers ago.

If you use Tylenol or the generic brands, they now have polyethylene glycol in them. I don't recall seeing that before.

Shredded cheeses have a cellulose powder on them to prevent clumping. These are commonly used on pizzas today.

Daisy sour cream appears additive free: This is the one we buy--
http://daisybrand.com/sour-cream

And cream cheese? You guessed it... filled with thickeners.

So the doctors kill off most of our beneficial GI bacteria with antibiotics, and the food companies provide the substrates that undesirable bugs love and the result? Fermentation in the bowel, and gas etc.
So then the GERD that results is treated with proton pump inhibitors which cause fermentation of proteins (which cannot be properly digested with low acid) and MORE gas and diarrhea result.