In middle school I chewed toilet paper instead of gum. I had been chewing a lot of gum, but it was expensive, and the mint was eventually causing my gums to hurt. Just the smell of mint was causing me to sweat and feel pain/tingle in my mouth. So I switched to chewing toilet paper. I would usually spit it out, but naturally due to the fibrous nature of toilet paper some of it would end up getting swallowed. After about half a year I started getting extremely painful stomach cramps, eventually resulting in a few nights of vomiting and nauseousness. Never chewed toilet paper since then. TLDR, don’t chew toilet paper