Why Many Doctors Recommend a High-Fiber Diet?

This might be simplistic, but a good explanation of why you should eat more fiber?

Whatever our small intestine does, it always obeys one basic rule: onward, ever onward!

This is achieved by the peristaltic reflex. The man who first discovered this mechanism did so by isolating a piece of gut and blowing air into it through a small tube and the friendly gut blew right back.

This is why many doctors recommend a high-fiber diet to encourage digestion: indigestible fiber presses against the gut wall, which becomes intrigued and presses back.

These gut gymnastics speed up the passage of food through the system and make sure the gut remains supple.

From the excellent book Gut by Giulia Enders

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