Nutrition in the Management of Inflammatory Bowel Diseases

Gastroenterol Clin North Am. 2021 Mar;50(1):151-167. doi: 10.1016/j.gtc.2020.10.001.Epub 2021 Jan 5.

Alexa N Sasson 1, Richard J M Ingram 2, Maitreyi Raman 3, Ashwin N Ananthakrishnan 4


Author information

  • 1Division of Gastroenterology, University of Toronto, 27 King's College Circle, Toronto, Ontario M5S 2E4, Canada.
  • 2Division of Gastroenterology, University of Calgary, 6D27 TRW Building, 3280 Hospital Drive Northwest, Calgary, Alberta T2N 4Z6, Canada.
  • 3Division of Gastroenterology, University of Calgary, 6D33 TRW Building, 3280 Hospital Drive Northwest, Calgary, Alberta T2N 4Z6, Canada.
  • 4Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, 165 Cambridge Street, 9th Floor, Boston, MA 02114, USA. Electronic address: aananthakrishnan@mgh.harvard.edu.


With the increasing global prevalence of inflammatory bowel diseases, research in this field is expanding to better understand the multifactorial etiologies of this complex disease. Nutrition and diet, as modifiable risk factors, have been shown to play an important role in disease activity and prognosis. This article reviews the role of nutrition in inflammatory bowel disease, including appropriate nutrition screening in this at-risk population, and associated micronutrient deficiencies. We provide recommendations on dosing supplementation. We briefly review diet as a risk factor for inflammatory bowel disease and the currently proposed published dietary intervention studies.

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