The Carnivore/Lion Diet has unbelievable success when it comes to constipation and bloating for many. Countless people report they now have the best digestion of their entire life… without fiber… so maybe we have made a mistake in our assumption that fiber is necessary…
If we take a hard look at what is going on here, it appears that when you are eating a high-fiber diet, plants ferment inside the digestive system producing gases that move the matter along (this is why fiber is “valued”). This is not a necessary process, however, as our digestive system has peristalsis; “the involuntary constriction and relaxation of the muscles of the intestine or another canal, creating wave-like movements that push the contents of the canal forward.” Fiber is only needed if you’ve damaged your gut enough (overconsumption of plant/processed foods) to stop peristalsis from occurring and you need fermentation/gases to move stuff out.