We all know there's no better feeling than dropping a BM and having it come out in one clean clump with little wipe, and not needing to return for several hours.

i'm trying to understand what compounds/processes can arrive and contribute to this effect.

for instance, we already know metamucil/fiber is a manner to arrive at this end. but the other day, i ate a roll of starbursts, and my BM came out much cleaner than it usually was. i know starburst doesn't have fiber....so what did the binding?

i believe immodium reduces the water overall.

i want to understand the science behind the options so i can figure out what to add to each meal to arrive at this desired end.