Dietary fiber intake, depression, and anxiety: a systematic review and meta-analysis of epidemiologic studies

e15080 Background: Epidemiological studies have suggested that intake of dietary fiber is associated with decreased risk of colon cancer, however, these findings are inconsistent in that dietary fiber intake is differentially associated with risks of proximal colon and distal colon cancers. To address this, we conducted a systematic review and meta-analysis. Methods: Pubmed database were searched to identify relevant cohort studies up to December 2016 to examine the association between dietary fiber and risks of proximal colon and distal colon cancers, respectively. A random-effects model was used to compute summary risk estimates. Results: 11 prospective cohort studies were identified and included in the analysis. We observed that the risk of proximal colon cancer was 14% lower among the highest dietary fiber intake compared with the lowest intake (RR = 0.86, 95% confidence interval [CI] = 0.78 to 0.95). A similar result was also found for distal colon cancer (RR = 0.79, 95% CI = 0.71 to 0.87). Conclusions: In current analysis, we show that dietary fiber intake is associated inversely with risks of both proximal and distal colon cancers.

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Letter by Tikhonoff et al Regarding Article, “Dietary Fiber Intake and Risk of First Stroke: A Systematic Review and Meta-analysis”

Stroke ◽

10.1161/strokeaha.113.002060 ◽

2013 ◽

Vol 44 (9) ◽

Author(s):

Valérie Tikhonoff ◽

Paolo Palatini ◽

Edoardo Casiglia

Keyword(s):

Systematic Review ◽

Dietary Fiber ◽

Meta Analysis ◽

Fiber Intake ◽

Dietary Fiber Intake

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Dietary fiber intake and pancreatic cancer risk: a meta-analysis of epidemiologic studies

Scientific Reports ◽

10.1038/srep10834 ◽

2015 ◽

Vol 5 (1) ◽

Cited By ~ 18

Author(s):

Chun-Hui Wang ◽

Chong Qiao ◽

Ruo-Chen Wang ◽

Wen-Ping Zhou

Keyword(s):

Pancreatic Cancer ◽

Cancer Risk ◽

Dietary Fiber ◽

Meta Analysis ◽

Epidemiologic Studies ◽

Fiber Intake ◽

Pancreatic Cancer Risk ◽

Dietary Fiber Intake

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Response to Letter Regarding Article, “Dietary Fiber Intake and Risk of First Stroke: A Systematic Review and Meta-analysis”

Stroke ◽

10.1161/strokeaha.113.002110 ◽

2013 ◽

Vol 44 (9) ◽

Author(s):

Diane E. Threapleton ◽

Darren C. Greenwood ◽

Victoria J. Burley

Keyword(s):

Systematic Review ◽

Dietary Fiber ◽

Meta Analysis ◽

Fiber Intake ◽

Dietary Fiber Intake

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Dietary Fiber Intake and Risk of Pancreatic Cancer: Systematic Review and Meta-Analysis of Observational Studies

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph182111556 ◽

2021 ◽

Vol 18 (21) ◽

pp. 11556

Author(s):

Daniele Nucci ◽

Omar Santangelo ◽

Sandro Provenzano ◽

Cristina Fatigoni ◽

Mariateresa Nardi ◽

...

Keyword(s):

Systematic Review ◽

Pancreatic Cancer ◽

Dietary Fiber ◽

Observational Studies ◽

Meta Analysis ◽

Current Evidence ◽

Free Text ◽

Fiber Intake ◽

Dietary Fiber Intake ◽

Incident Cases

The burden of pancreatic cancer varies greatly across countries, with the number of deaths, incident cases, and disability-adjusted life years more than doubling in recent years, and with high-income countries having the highest incidence and mortality rates. We conducted this systematic review with meta-analysis with the goal of summarizing the current evidence on dietary fiber intake and its role in reducing the risk of pancreatic cancer, given the importance of identifying risk factors. This systematic review followed the guidelines of the Cochrane Collaboration and the Meta-analysis of Observational Studies in Epidemiology and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses 2020. The structured literature search was conducted on PubMed/Medline and Scopus, combining free text words and medical subject headings. Our review contained 18 records at the end of the process. Our results show that dietary fiber intake reduces the risk of pancreatic cancer. When the analysis was differentiated according to the type of fiber considered, sub-grouped by gender (reduction of around 60% among women), and when case-control studies were conducted, the strength of the association increased. Clinicians and policymakers should improve interventions to raise the population’s awareness regarding the consumption of high-fiber diets, both in practice and in terms of public health policy.

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