Why Is Fiber Important for Your Digestive Health?


Fiber is a carbohydrate that the body cannot digest. Yet it is essential for digestive health.

It promotes regularity and prevents constipation. It slows down digestion and keeps blood sugar on an even keel.

Another notable benefit, often overlooked by those outside the medical field, is that fiber acts as fuel for your gut microbiome, that large collection of bacteria, viruses, fungi, and other microbes that live in your gastrointestinal tract. These microbes exist symbiotically with the digestive system and, research shows, support energy harvesting, digestion, and immune defense.

Eamonn Quigley, MD, the chief of gastroenterology and hepatology at Houston Methodist Hospital, says that intact microbiomes protect you from “bad bacteria” that may cause dysbiosis or infection.


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