Is the Fiber Theory Wrong?

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DESCRIPTION: The extraordinarily low rates of chronic disease among plant-based populations have been attributed to fiber, but reductionist thinking may lead us astray.

My video Solving a Colon Cancer Mystery ( is a perfect example of the concept I presented above. If fiber was really the key, then sub-Saharan Africa would be rife with colorectal cancer these days.

For an extreme example, how about disease reversal with diet centered around white rice? See Kempner Rice Diet: Whipping Us Into Shape ( and Drugs and the Demise of the Rice Diet (

Wait a second, though, didn’t I just have a video saying you should specifically look for fiber? The Five to One Fiber Rule ( is just a way to identify less processed foods using fiber as a marker of whole foods.

For more intrigue in the world of fiber, check out Does Fiber Really Prevent Diverticulosis? (

And if you’re thinking “Dr. Who?” then, for a historical perspective: Dr. Burkitt’s F-word Diet (

Have a question for Dr. Greger about this video? Leave it in the comment section at and he’ll try to answer it!
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