Red meat, overweight and obesity: A systematic review and meta-analysis of observational studies.

Clin Nutr ESPEN

Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran; Diabetes Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran. Electronic address:

Published: October 2021

Aim: The present study aimed to review and perform a meta-analysis summarizing the available evidence on the association between red meat consumption and obesity.

Methods: A computerized search strategy was performed up to Feb 9, 2020. PubMed, Scopus, and web of science were used to conduct a comprehensive search for all relevant publications. The quality of the included articles was determined by using the Newcastle-Ottawa Scale. A random-effects model was conducted for analysis of the included cross-sectional studies. In the case of significant heterogeneity, subgroup analyses were conducted to explore possible sources of inter-study heterogeneity.

Results: In the overall pooled estimate of 3 studies, it was shown that red meat consumption was not associated with overweight (pooled effect size: 1.19, 95% CI: 0.97-1.46, p = 0.099). The results from combining 7 studies showed a non-significant association between red meat intake and obesity (pooled effect size: 1.16, 95% CI: 0.93-1.44, p = 0.199) with significant heterogeneity among studies (I = 87.3%, p < 0.0001).

Conclusion: In conclusion, results extend the evidence that red meat consumption was not associated with the risk of overweight as well as no association between total meat consumption and obesity.

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http://dx.doi.org/10.1016/j.clnesp.2021.07.028DOI Listing

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