What is a gluten? And why do IGAS? I’m gonna die anyways?
It is in wheat, an adhesive like substance.
Gluten is an artifact of the agriculture revolution of the 1970s, when they figured out how to grow more dense crops using new wheat varieties (not GMO yet).
Prior to that, there was less gluten in our diet. Hence the concern.
Plus more bagels and pizza in our diet. Growing up, bread was thin slices for a lunch sandwich. Not eaten at breakfast or dinner.