Meta-analysis2023

Effects of whole grain intake on glycemic traits: A systematic review and meta-analysis of randomized controlled trials

Li S, Zong A, An R, Wang H, Liu L, Liu J, Guo X, Xu Z, Wang J, Li D, Du F, Xu T

Critical reviews in food science and nutrition · 15 citations

How it was studied

Design
Meta-analysis (indexed by PubMed)
Studied in
People
Main outcome
Health markers and function
Intake measured by
Not stated

Who paid for it

Funding
Independent funding
University or hospital
Beijing Advanced Innovation Center for Food Nutrition and Human Health
University or hospital
Open Project Program of China-Canada Joint Lab of Food Nutrition and Health, Beijing Technology and Business University
Government
National Key R & D Project
Grants
Beijing Advanced Innovation Center for Food Nutrition and Human Health (20171030)

Based on 3 listed funder(s).

Publication

Published
2021-11-18 · Crit Rev Food Sci Nutr · vol. 63 · issue 20 · pp. 4351–4370
Publisher
Taylor & Francis
Cited
24 citations · more than 66% of similar papers · 0.8× the field average
References
74 works
Access
Open access (repository copy) · CC-BY
Research areas
Food composition and properties · Nutritional Studies and Diet · Diet and metabolism studies
Keywords
Meta-analysis, Glycemic, Randomized controlled trial, Whole grains, Medicine, Glycemic index, Food science, Internal medicine, Biology, Insulin
MeSH
humans, diabetes mellitus, type 2, insulin resistance, insulin, blood glucose, randomized controlled trials as topic, whole grains, glycated hemoglobin

12 authors

From CN

  • Shixiang LiShandong Academy of Agricultural Sciences; Ministry of Agriculture and Rural Affairs; Shandong Agricultural University
  • Aizhen ZongShandong Academy of Agricultural Sciences; Ministry of Agriculture and Rural Affairs; Shandong Agricultural University
  • Ran AnShandong Normal University; Shandong Academy of Agricultural Sciences; Ministry of Agriculture and Rural Affairs
  • Haiou WangShandong Academy of Agricultural Sciences; Ministry of Agriculture and Rural Affairs
  • Lina LiuShandong Academy of Agricultural Sciences; Ministry of Agriculture and Rural Affairs
  • Jie LiuBeijing Technology and Business University

Abstract

Whole grains (WGs) may have various health benefits, including lowering blood glucose and improving insulin sensitivity. To conduct a meta-analysis of the effects of WGs compared with non-WGs on changes in fasting glucose, fasting insulin, glycated hemoglobin (HbA1c), and homeostasis model assessment of insulin resistance (HOMA-IR). A systematic literature search was performed for all published randomized controlled trials on the effects of WG intake on fasting glucose, fasting insulin, HbA1c and HOMA-IR response up to February 2021. Weighted mean differences (WMD) were calculated. Pre-specified subgroup and univariate meta-regression analyses were explored to identify the sources of heterogeneity. Sensitivity analysis and bias analysis were conducted to appraise study quality. Among 12,435 articles screened for eligibility, data were extracted from 48 articles. Meta-analysis of 4,118 participants showed that WG consumption resulted in a significant reduction in fasting glucose by -0.15 mmol/L, fasting insulin by -2.71 pmol/L, HbA1c by -0.44%, and HOMA-IR by -0.28, respectively. Compared with mixed grains, brown rice, and wheat, oats were significantly lower on marker of glycemic. Besides, multiple interventions per day consolidated effectiveness of WGs. WG consumption decreased the levels of fasting glucose, fasting insulin, HbA1c, and HOMA-IR compared with non-WG consumption.Supplemental data for this article is available online at https://doi.org/10.1080/10408398.2021.2001429 .

Abstract via Europe PMC. Copyright remains with the authors or publisher.

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