The Squatty Potty and its imitators found out something that proctologists, gastroenterologists, and human physiologists already knew–that the toilet isn’t great for your bowel health. When you’re standing, there’s a 90-degree bend between your rectum and your anus that keeps in your poop. When you sit down, this angle increases to 100 degrees, making it somewhat easier to poop. Squatting straightens out that angle even more to 126 degrees, so the more you can raise your feet from the floor, the better the poop.
The original Squatty Potty raises your feet 7 inches from your bathroom floor. A standard yoga block’s shortest, most stable height is 3.5 inches. Not quite high enough. The medium height is 5.5 inches, but there’s less surface area for your feet, so you’d have to get the angle of the blocks correctly in line with your feet. Sure, you can use the tallest setting of your yoga block to raise your feet 8.5 inches, but that only gives you 5.5 inches of room for your feet to rest.
Because I didn’t want the yoga blocks falling over, I settled for the medium height of the blocks, giving me not as much height as the Squatty Potty, but at least it was better than the original sitting position.