Author Identifier

Lesley Andrew

ORCID : 0000-0003-0344-4611

Amanda Devine

ORCID : 0000-0001-6978-6249

Claus Christophersen

ORCID : 0000-0003-1591-5871

Document Type

Journal Article

Publication Title





School of Medical and Health Sciences / Institute for Nutrition Research / School of Nursing and Midwifery




Edith Cowan University - Open Access Support Scheme 2021

China Scholarship Council


Yan, R., Andrew, L., Marlow, E., Kunaratnam, K., Devine, A., Dunican, I. C., & Christophersen, C. T. (2021). Dietary fibre intervention for gut microbiota, sleep, and mental health in adults with irritable bowel syndrome: A scoping review. Nutrients, 13(7), article 2159.


Irritable bowel syndrome (IBS) is a common functional gastrointestinal disorder affecting 4–5% of the global population. This disorder is associated with gut microbiota, diet, sleep, and mental health. This scoping review therefore aims to map existing research that has administrated fibre-related dietary intervention to IBS individuals and reported outcomes on at least two of the three following themes: gut microbiota, sleep, and mental health. Five digital databases were searched to identify and select papers as per the inclusion and exclusion criteria. Five articles were included in the assessment, where none reported on all three themes or the combination of gut microbiota and sleep. Two studies identified alterations in gut microbiota and mental health with fibre supplementation. The other three studies reported on mental health and sleep outcomes using subjective questionnaires. IBS-related research lacks system biology-type studies targeting gut microbiota, sleep, and mental health in patients undergoing diet intervention. Further IBS research is required to explore how human gut microbiota functions (such as short-chain fatty acids) in sleep and mental health, following the implementation of dietary pattern alteration or component supplementation. Additionally, the application of objective sleep assessments is required in order to detect sleep change with more accuracy and less bias.



Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.