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