<![CDATA[Background: Students engage in various health-risk behaviors such as lack of physical activity and unhealthy diet. Obesity is a worldwide health problem with increased prevalence every year, both in developed and developing countries. This study aims to analyze and estimate the influence of HBM-based health education on obesity prevention in students. Subject and Method: Meta-analysis was conducted according to the PRISMA flow diagram and PICO model. The search for articles in this study was through databases including PubMed, Google Scholar, Science Direct and Scopus. With keywords including: "Obesity" AND "Health Belief Model" OR "Health Belief" AND "Students". Full paper articles with RCT studies, research subjects were students, the relationship measure used was SMD, the outcome of the study was knowledge and perceived severity of obesity prevention. The analysis was conducted with RevMan 5.3 program. Results: There are 12 articles with randomized control trial designs originating from Iran, Iraq, India, Thailand, Australia with 2,261 research samples. Meta-analysis of 8 randomized control trial studies concluded that students who received HBM-based health education had knowledge in preventing obesity by 1.65 times higher than those without HBM education (SMD= 1.65; 95% CI= 0.60 to 2.70; p= 0.002). Meta-analysis of 6 randomized control trial studies concluded that students who received HBM-based health education had a perceived severity in preventing obesity by 1.85 times higher than those without HBM education (SMD= 1.08; 95% CI = 0.52 to 1.64; p= 0.002). Conclusion: HBM-based health education has a significant effect on increasing knowledge and perceived severity of obesity prevention in students.]]>
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