5min chapter

The Proof with Simon Hill cover image

Building a Healthy Gut | Dr Will Bulsiewicz

The Proof with Simon Hill

CHAPTER

What's the Deal With Fiber?

Dr. B: Fiber is fascinating because it survives digestion through the entire small intestine and it arrives in the colon unchanged. When it gets to the colon, it undergoes a transformation that the human body is not capable of doing. We rely on these gut bacteria to do this. They change the fiber into something called a short chain fatty acid. And what we see are that people who have a healthy gut, they consume plant foods.

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