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

Elnaz Daneshzad, Mohammadreza Askari, Maedeh Moradi, Sima Ghorabi, Tohid Rouzitalab, Javad Heshmati, Leila Azadbakht

Journal: Clinical nutrition ESPEN 2021;45():66-74

PMID: 34620372

Full Text on Elsevier Science View on PubMed

Abstract

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.

Address: Non-communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran.; Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran.; Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran.; Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran.; Department of Biochemistry and Diet Therapy, Nutrition Research Center, School of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.; Songhor Healthcare Center, Kermanshah University of Medical Sciences, Kermanshah, Iran.; 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: [email protected].

DOI: 10.1016/j.clnesp.2021.07.028

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MeSH Terms: Cross-Sectional Studies, Humans, Obesity, Overweight, Red Meat, Risk Factors