There are a lot of stools out there that are making some pretty big claims about how your poops are going to be sooooo great if you start squatting when you poop like. It kind of makes sense. Humans had to squat to poop for the vast majority of human history. Sitting on a toilet for your daily offloading of used up food is really pretty new.
But is there really evidence that squatting is better for your body than sitting? The Sci Show, ever willing to illuminate the most pressing questions science can answer, took a crack at it in the video above.
They go in-depth in the video above, but the short answer is that it's less conclusive than those infomercials would have you believe. There have been limited studies on the matter, and that have been pretty limited in scope (only 28 subjects were used in a study cited by Squatty Potty in their famed commercial), meaning that there needs to be more significant research done before anything can be broadly claimed as scientific fact.
Nonetheless, those limited studies "say that squatting helps align your rectum and anal canal better than sitting does." That may mean that people who squat "have to strain less and the elimination process takes less time." That, in turn, indicates that squatting may help with hemorrhoids, which can be caused by overexertion while defecating.