Peter Attia· MD
if you don't consume fiber that means that your gut bacteria are not getting the food they need because you're absorbing it all early well they still have to survive so what do they do they Protea lies and lipo lies the mucin layer to digest they Auto digest the mucin layer that sits on the surface of your intestinal epithelial cells protecting them and you can actually see on electro microscopy an increased opposition of the bacteria with the intestinal epithelial cell which likely causes damage possibly a leaky gut and possibly GI disease like colitis and even maybe Crohn's