An estimated 15% of the US population is affected by gluten intolerance. 1 of every 133 has celiac disease, a disease with over 300 symptoms. 97% of those effected with celiac don’t even know they are. There are 0 drugs to treat celiac. The only way to treat this disease is to know what exactly you allow in your body.
This video is a bit lengthy (20 min) but does a decent job explaining what gluten does once it enters our bodies. Interesting stuff!