A few people went back to eating fiber even though they felt better without it—mostly because of their beliefs or culture, not because they felt worse.

Most people with chronic constipation chose to keep eating less fiber after trying it, because they felt better—only a few went back to eating lots of fiber.

Most people who came in with constipation were already eating a lot of fiber—so they weren’t lacking it, which challenges the idea that fiber deficiency causes constipation.

This study shows that people with constipation don’t need fiber to poop normally—many felt better when they stopped eating it.

Cutting fiber might help constipation because it makes poop smaller and less gas is made in the gut, so it’s easier to go and you don’t feel as bloated.

People with constipation who kept taking fiber pills or eating lots of whole grains didn’t feel better—even if they tried to change their habits, the fiber kept them feeling the same.