Whole Grains, Dietary Fibers and the Human Gut Microbiota: A Systematic Review of Existing Literature
Tangestani H, Emamat H, Ghalandari H, Shab-Bidar S
Recent patents on food, nutrition & agriculture · 22 citations
Review labels
Neutral facts our review recorded about how this study was done. They describe method, never whether we like the result.
How it was studied
- Design
- Systematic review (indexed by PubMed)
- Studied in
- People
- Main outcome
- Mechanisms only
- Intake measured by
- Not stated
Who paid for it
- Funding
- Funding not disclosed
Publication
- Published
- 2020-03-16 · Recent Pat Food Nutr Agric · vol. 11 · issue 3 · pp. 235–248
- Publisher
- Bentham Science Publishers
- Cited
- 30 citations · more than 48% of similar papers · 0.4× the field average
- References
- 79 works
- Access
- Paywalled
- Research areas
- Gut microbiota and health · Food composition and properties · Probiotics and Fermented Foods
- Keywords
- Gut flora, Clostridia, Food science, Population, Biology, Human studies, Dietary fiber, Medicine, Environmental health, Bacteria, Internal medicine, Immunology
- MeSH
- humans, bifidobacterium, lactobacillus, dietary fiber, clinical trials as topic, gastrointestinal microbiome, whole grains
4 authors
From IR
- Hadith TangestaniTehran University of Medical Sciences
- Hadi EmamatShahid Beheshti University of Medical Sciences
- Hamid GhalandariShahid Beheshti University of Medical Sciences
- Sakineh Shab‐Bidar · correspondingTehran University of Medical Sciences
Abstract
Background
The health benefits of dietary fibers have been proved for a long time. The importance of microbiota has been identified in human health and there is a growing interest to study the factors affecting it.
Objective
This systematic review aimed to investigate the impact of fiber and whole grains (WGs) on human gut microbiota in a patent-based review.
Methods
All related clinical trials were systematically searched on PubMed and Scopus search engines from inception up to Feb 2020. Interventional human studies reporting changes in microbiota by using any type of grains/fibers were included. The following information was extracted: date of the publication, location and design of the study, sample size, study population, demographic characteristics, the amount of dietary WGs/fiber, the duration of intervention, the types of grains or fibers, and changes in the composition of the microbiota.
Results
Of 138 studies which were verified, 35 studies with an overall population of 1080 participants, met the inclusion criteria and entered the systematic review. The results of interventional trials included in this review suggest some beneficial effects of consuming different amounts and types of WGs and fibers on the composition of intestinal microbiota. Most included studies showed that the intake of WGs and fibers increases bifidobacteria and lactobacilli and reduces the pathogenic bacteria, such as Escherichia coli and clostridia in the human gut.
Conclusion
The consumption of WGs/fibers may modify the intestinal microbiota and promote the growth of bifidobacteria and lactobacilli. Nevertheless, further research is warranted in different populations and pathological conditions.
Abstract via Europe PMC. Copyright remains with the authors or publisher.
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