Natural BMI Reductions and Overestimation of Obesity Trial Effectiveness.

The article discusses a study that evaluated the effectiveness of obesity trial overestimation and natural reduction of body mass index (BMI) z score. Topics covered include comparison of mean changes in the BMI z score of three published obesity studies and participation bias in the Longitudinal Study of Australian Children (LSAC). Recommendations include control of intervention trials, designing studies with multiple baselines and research focus on achieving a body set-point change.