Limitations
Our findings might be limited by the relatively small sample size (nonrepresentative), which could make some of the statistical analyses underpowered to detect significant differences and by the fact that some of the evaluators were not blinded to the group allocation. We believe that most of the outcomes included in our study are objective and unlikely to be influenced by assessor blinding (ie, cardiometabolic health, blood markers assessed in external laboratory, and body composition by dual-energy x-ray absorptiometry). The lack of findings in mental health may be explained by the ceiling effect observed in our children (ie, healthy mental status at baseline).