I feel the need to clarify that the pictured penis is neither my penis nor did I photograph it! :D I joked that it's my 'own work' but immediately said 'kidding' in the next line.

I noticed that when I eat properly my anus hardly needs any wiping. Seriously. Stool that stains is indicative of poor nutrition.

There's also the keto diet, that I haven't tried but I'd like to, where most of what you eat gets absorbed, so you poop less often, and less.