Gluten-free, yeast-free--& Pesachdikeh--cure for upset tummies?

I tried Absolutely Gluten-Free Flatbread, Original flavor--they're also yeast-free--and they helped calm my upset stomach.  They seem to be a gluten-free, yeast-free version of plain saltine crackers.  Maybe they'll work for you, too.  And, unlike saltines, they're kasher l'Pesach/kosher for Passover, which might be handy after a heavy Seder meal.  :)

IMPORTANT KASHRUT NOTICE, Wednesday, April 23, 2014 (post-Pesach) update:
It turns out that only some, not all, of the Absolutely Gluten Free flatbreads and crackers are kasher l'Pesach/kosher for Passover.  Please be sure to follow standard kosher operating procedure and check every food product on an individual basis, even if they're made by the same company.  This is especially important regarding kosher for Passover products, as some of them may lose their kasher l'Pesach status between one Pesach and the next.