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The benefits of dietary fiber: the gastrointestinal tract and beyond

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Abstract

Dietary fiber is considered an essential constituent of a healthy child’s diet. Diets of healthy children with adequate dietary fiber intake are characterized by a higher diet quality, a higher nutrient density, and a higher intake of vitamins and minerals in comparison to the diets of children with poor dietary fiber intake. Nevertheless, a substantial proportion of children do not meet the recommended dietary fiber intake. This is especially true in those children with kidney diseases, as traditional dietary recommendations in kidney diseases have predominantly focused on the quantities of energy and protein, and often restricting potassium and phosphate, while overlooking the quality and diversity of the diet. Emerging evidence suggests that dietary fiber and, by extension, a plant-based diet with its typically higher dietary fiber content are just as important for children with kidney diseases as for healthy children. Dietary fiber confers several health benefits such as prevention of constipation and fewer gastrointestinal symptoms, reduced inflammatory state, and decreased production of gut-derived uremic toxins. Recent studies have challenged the notion that a high dietary fiber intake confers an increased risk of hyperkalemia or nutritional deficits in children with kidney diseases. There is an urgent need of new studies and revised guidelines that address the dietary fiber intake in children with kidney diseases.

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Authors and Affiliations

  1. Ghent University: Universiteit Gent, Ghent, Belgium

    Evelien Snauwaert, Johan Vande Walle & An Desloovere

  2. Policlinico of Milan: Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy

    Fabio Paglialonga

  3. Evelina London Children’s Hospital Paediatrics, London, UK

    Mandy Wan

  4. BC Children’s Hospital, Vancouver, Canada

    Nonnie Polderman

  5. Wilhelmina Children’s Hospital University Medical Centre: Universitair Medisch Centrum Utrecht - Locatie Wilhelmina Kinderziekenhuis, Utrecht, Netherlands

    José Renken-Terhaerdt

  6. Great Ormond Street Hospital NHS Trust: Great Ormond Street Hospital For Children NHS Foundation Trust, London, UK

    Vanessa Shaw & Rukshana Shroff

Authors
  1. Evelien Snauwaert
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  2. Fabio Paglialonga
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  3. Johan Vande Walle
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  4. Mandy Wan
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  5. An Desloovere
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  6. Nonnie Polderman
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  7. José Renken-Terhaerdt
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  8. Vanessa Shaw
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  9. Rukshana Shroff
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Contributions

Conceptualization: SE, FB, RS, MW, VS; formal analysis and investigation: SE, FB; writing—original draft preparation: SE, WS, JNA; writing—review and editing: SE, FB, RS, MW, VS, VWJ, DA, PN, RTJ; resources: SE, FB, RS; supervision: RS, VWJ

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Correspondence to Evelien Snauwaert.

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Evelien Snauwaert and Fabio Paglialonga shared first author position.

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Snauwaert, E., Paglialonga, F., Vande Walle, J. et al. The benefits of dietary fiber: the gastrointestinal tract and beyond. Pediatr Nephrol 38, 2929–2938 (2023). https://doi.org/10.1007/s00467-022-05837-2

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  • DOI: https://doi.org/10.1007/s00467-022-05837-2

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