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Fiber and the Gut

You are here: Home / Archive / Feature Stories / Fiber and the Gut
Published: February 4, 2018 by RHJ Producer

Fiber is an important part of a daily diet, but many people do not know what fiber  does for the body. Dr. Hannah Holscher, Assistant Professor of Nutrition at the University of Illinois-Urbana-Champaign, explains that fiber is a non-digestible carbohydrate that is found in plants which human enzymes cannot break down, so the body relies on microbes.

But why is fiber so important for the human body? According to Dr. Andrew Gewirtz, Professor of Biomedical Sciences at Georgia State University, fiber helps nourish beneficial bacteria in the intestine that is needed to aid digestion, keep the immune system strong, and block potential pathogens. Without fiber in your diet, this bacteria becomes malnourished, decreasing the number of them present. Dr. Gewirtz explains that discoveries from experiments on mice show that this decrease in bacteria can lead to a number of health issues.

It is important to maintain a high fiber diet in order to ensure proper nourishment of these beneficial bacteria. However, many people stick to one type of fiber rather than trying a few. People should eat a variety of fruits, vegetables, and other high-fiber foods to give their bodies more than one kind of fiber. While it can be difficult to consume the suggested amount of fiber everyday, the positive health benefits are worth it.


Guest Information:

  • Dr. Hannah Holscher, Assistant Professor of Nutrition at University of Illinois-Urbana-Champaign
  • Dr. Andrew Gewirtz, Professor of Biomedical Sciences at Georgia State University
Program #: 18-05Segment Type: Feature StoriesTopics: Biology| Biomedical Engineering| Gastroenterology and Digestion| Gut Bacteria| Nutrition and DietGuests: Dr. Andrew Gewirtz| Dr. Hannah HolscherInstitutions & Organizations: University of Illinois| University of Illinois at Urbana-Champaign
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About RHJ Producer

Since 1992, Radio Health Journal has been bringing listeners useful, verifiable information they can trust and rely on in the fields of medicine, science & technology, research, and the intersection of health & public policy. Both Radio Health Journal and sister show Viewpoints Radio are AURN productions.

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