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Pork Consumption in Relation to Body Weight and Composition: A Systematic Review and Meta-analysis

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Objectives: In this study, we systematically synthesized scientific evidence on pork consumption in relation to body weight and composition among adults. Methods: We performed a keyword search using Cochrane Library, PubMed, Web of Science, CINAHL, and Google Scholar. We conducted a meta-analysis to estimate the pooled effect size of pork consumption on body weight and composition. Results: Overall, 12 studies met the eligibility criteria for inclusion in the review. Among the experimental studies without daily total energy intake restrictions, pork intake was associated with a reduction in body weight by 0.86 kg (95% CI = 0.17-1.55) and body fat percentage by 0.77% (95% CI = 0.11%-1.43%); pork intake was not associated with change in lean mass. Among the experimental studies with energy restrictions, pork intake was associated with a reduction in body weight by 5.56 kg (95% CI = 0.55-10.59), lean mass by 1.50 kg (95% CI = 1.39-1.62), and fat mass by 6.60 kg (95% CI = 6.42-6.79). Among the observational studies, pork intake was not associated with overweight/obesity. Conclusions: Findings on pork consumption in relation to body weight/composition differed by study design. Future experimental studies using representative samples are warranted to examine the effect of fresh/lean pork consumption on body weight and composition in the general population and by subgroups.
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Keywords: BODY COMPOSITION; BODY WEIGHT; META-ANALYSIS; OBESITY; PORK; REVIEW

Document Type: Research Article

Affiliations: 1: Ruopeng An, Assistant Professor, Brown School of Social Work, Washington University, St. Louis, MO 2: Jianxiu Liu, Department of Physical Education, Tsinghua University, Beijing, China;, Email: [email protected] 3: Ruidong Liu, Department of Physical Education, Tsinghua University, Beijing, China

Publication date: July 1, 2020

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  • The American Journal of Health Behavior seeks to improve the quality of life through multidisciplinary health efforts in fostering a better understanding of the multidimensional nature of both individuals and social systems as they relate to health behaviors.

    The Journal aims to provide a comprehensive understanding of the impact of personal attributes, personality characteristics, behavior patterns, social structure, and processes on health maintenance, health restoration, and health improvement; to disseminate knowledge of holistic, multidisciplinary approaches to designing and implementing effective health programs; and to showcase health behavior analysis skills that have been proven to affect health improvement and recovery.

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