Exploring the Accuracy and Acceptability of Portion Size Measurement Aids in Parents of Overweight Children

Portion size measurement aids (PSMAs) are tools that facilitate the estimation of food servings. The objectives of this study were to determine (a) if food portion size estimation accuracy differs when using a two dimensional (2D) PSMA (actual-size photos called Portion Size Cards) compared to a 3D PSMA (Portion Size Kit) and (b) whether differences exist in the short-term usefulness of and satisfaction with these PSMAs in a sample of parents of overweight children and youth.