Affiliation:
1. Department of Nutrition and Food Hygiene, School of Public Health, Fudan University, Shanghai 200032, China
2. Nutrilite Health Institute, Shanghai 201203, China
3. Department of Preventive Medicine and Health Education, School of Public Health, Fudan University, Shanghai 200032, China
Abstract
(1) Background: Numerous meta-analyses have shown that a high intake of dietary fiber plays a protective role in preventing the development of various types of cancer. However, previous studies have been limited by focusing on a single type of dietary fiber and variations in outcome measures, which may not be effectively applied to provide dietary guidance for the general population. (2) Object: We summarized the meta-analysis of dietary fiber and cancer, and provided references for residents to prevent cancer. (3) Methods: Systematic search of relevant meta-analyses on the association between dietary fiber and cancer occurrence in PubMed, Web of Science and other databases was conducted from the time of database construction to February 2023. The method logical and evidence quality assessments were performed by applying the criteria in the “A Measurement Tool to Assess Systematic Reviews-2” (AMSTAR2) scale and the World Cancer Research Fund/American Institute for Cancer Research (WCRF/AICR) Expert Report, respectively. (4) Results: Our analysis included 11 meta-analyses, and the AMSTAR 2 assessment revealed that the overall methodological quality was suboptimal, with two key items lacking sufficient information. Nonetheless, our findings indicate that a high intake of dietary fiber is associated with a reduced risk of several types of cancer, including esophageal, gastric, colon, rectal, colorectal adenoma, breast, endometrial, ovarian, renal cell, prostate, and pancreatic cancers. The majority of these associations were supported by a “probable” level of evidence. (5) Conclusions: Dietary fiber intake has different protective effects on different cancers.
Subject
Food Science,Nutrition and Dietetics
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