The association between body appreciation and body mass index among males and females: A meta-analysis

To date, a number of studies have reported an association between body appreciation and body mass index (BMI), but the findings are not consistent. Using a meta-analytic approach, the current study aimed to clarify this association as well as to explore what factors might have contributed to the inconsistency across previous studies. By searching and screening potential studies published up to June 2019 in four databases, we identified 26 articles that reported an association between body appreciation and BMI among males, and 59 articles among females. Under a random-effects model, among males the overall estimate of the association between body appreciation and BMI was negative and small, with the pooled r = -.20 (95 % CI: -.25, -.14) and an adjusted (for publication bias) pooled r = -.11 (95 % CI: -.16, -.06). Among females, the overall estimate of the association was negative and small (but close to moderate), with r = -.27 (95 % CI: -.30, -.24). A mixed-effects model identified several moderators that contributed to the inconsistency across previous studies. These results indicate that the overall negative association between body appreciation and BMI is weak among males, and slightly larger among females. Potential explanations, implications, and future research directions are discussed.