Not accurate enough. All the piss and sweat would mean lost weight too.
It should be measured the same way calories are measured: dehydrate it, weigh it, and then explode it inside a machine. I wanna see how many calories go in and how many calories go out.
Depends on the size of the poop I guess? Probably some linear relationship so if you could model it over time you can then correct your toilet seat scale readings
„We can’t swear on the internet or show boobies on TV! Why won’t anyone think of the children!?! Also, here’s a hello kitty themed automatic rifle for your 7 year old.“
I weighed myself before and after a colonoscopy prep just do I could calculate how full of shit I really am. Turns out just about everybody was wrong. I'm less than 1% shit. Take that fuckers.