If anyone is willing, please help me understand, not why, but how someone can subsist on a diet with zero fiber. I know folks who can sit down to a plate of nothing more than white rice and meat without petrifying their backside. If I tried to do the same, I'd be using solvents and chipping hammers every morning. Have I missed something? Is this a 99% absorption rate diet? Where does it go?
Fiber is not necessary, and can be the cause of constipation. Your body has ways of managing, and individuals who don't eat fiber have more motility:
https://pmc.ncbi.nlm.nih.gov/articles/PMC3435786/
"Stopping or reducing dietary fiber intake reduces constipation and its associated symptoms"