The Study
High and low dietary fiber consumption and cancer risk: a comprehensive umbrella review with meta-meta-analysis involving meta-analyses of observational epidemiological studies
This study looked at lots of other studies about fiber and cancer. It found that people who eat more fiber tend to have less cancer, but it can't prove that fiber actually prevents cancer because it wasn't a controlled experiment.
Analysis score
Maximum 100 for a systematic review with meta-analysis.
Where the score came from
This study looked at many other studies to see if eating more fiber affects cancer.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 539 / 100
Quality score
The highest quality evidence. Systematic reviews and meta-analyses that pool randomized controlled trials, giving the most reliable summary of experimental evidence.
Key takeaways
Summary
Based on the study abstract and findings.
- 1Eating fiber may help reduce cancer chances.
- 2More fiber linked to 22% lower cancer risk, 17% lower death from cancer, and less digestive tract and breast cancer.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Critical Reviews in Food Science and Nutrition
Year
2023
Authors
M. Arayıcı, Yasemin Başbınar, H. Ellidokuz
Related Content
Claims (5)
Eating more fiber in your diet might help lower your chances of getting cancer overall, according to a big review of past studies.
Eating more fiber might help people live longer by lowering their chances of dying from cancer.
Eating more fiber might lower your chances of getting cancers in your stomach or intestines, according to a big review of past studies.
Eating more fiber might lower your chances of getting breast cancer, according to a big review of studies.
Eating fiber helps lower your chances of getting colon cancer by keeping your blood sugar in check, boosting good gut bacteria, and reducing inflammation in your body.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.