zedprime posted:

The amount turning to poo poo is a complex digestive biome situation. The only thing that really needs to come out your butt is bilirubin and certain ashes. Some normally indigestible fiber can be partly or fully fermented by gut flora if not eaten in intestine-casting amounts. Little poopers exist based on diet and their personal gut flora taking care of business very efficiently.

The fun physical chemistry debate is do you get lighter when fiber is digested into CO2 or when you fart?