Insoluble fiber is broken down by bacteria in the intestine, producing butyric acid which literally provides ATP (energy) to the wall of the lower intestine and colon.

When insoluble fiber is withheld, signalling scarcity instead of abundance, the body will use emergency measures to power the colon, producing butyric acid by scavenging the mucus and wall of the colon.

Over time, as butyric acid runs out, the body develops leaky gut, peristalsis, and becomes vulnerable to bacterial, fungal, parasitic infections, and cancers.

Jordan Peterson, who ran carnivore successfully at first (because of the symptoms relief from avoiding omnivorous eating), but ultimately became fragile and developed a serious systemic mold infection.

Low butyrate? Likely a big factor.

Fix your gut.

Eat (good) fiber.

Power your colon.

Take great sh*ts.