OBJECTIVE: To develop a Web-based tool (PortionSize@warenessTool) and to evaluate its effectiveness in increasing awareness of reference serving sizes and factors that may contribute to overeating in response to large portion sizes. METHODS: A randomized, controlled trial (intervention, n = 167; control, n = 143) was conducted. The authors measured awareness of reference serving size and overeating triggers from larger portions by an online questionnaire, assessed at baseline and 1 week later. Exposure dose reflected online activity (eg, number of Web pages viewed). Process evaluation data were collected within the intervention group. RESULTS: The intervention group demonstrated significantly higher awareness of reference serving sizes (η(2) = .062; P < .001) and overeating triggers from larger portions (η(2) = .061; P < .001) at posttest. Also, the authors observed a dose-dependent effect that led to improved awareness. CONCLUSIONS AND IMPLICATIONS: The PortionSize@warenessTool constitutes a promising tool to improve portion size awareness.
RCT Entities:
OBJECTIVE: To develop a Web-based tool (PortionSize@warenessTool) and to evaluate its effectiveness in increasing awareness of reference serving sizes and factors that may contribute to overeating in response to large portion sizes. METHODS: A randomized, controlled trial (intervention, n = 167; control, n = 143) was conducted. The authors measured awareness of reference serving size and overeating triggers from larger portions by an online questionnaire, assessed at baseline and 1 week later. Exposure dose reflected online activity (eg, number of Web pages viewed). Process evaluation data were collected within the intervention group. RESULTS: The intervention group demonstrated significantly higher awareness of reference serving sizes (η(2) = .062; P < .001) and overeating triggers from larger portions (η(2) = .061; P < .001) at posttest. Also, the authors observed a dose-dependent effect that led to improved awareness. CONCLUSIONS AND IMPLICATIONS: The PortionSize@warenessTool constitutes a promising tool to improve portion size awareness.
Authors: Maartje P Poelman; Emely de Vet; Elizabeth Velema; Michiel R de Boer; Jacob C Seidell; Ingrid H M Steenhuis Journal: Ann Behav Med Date: 2015-02
Authors: M Angeles Vargas-Alvarez; Santiago Navas-Carretero; Luigi Palla; J Alfredo Martínez; Eva Almiron-Roig Journal: Nutrients Date: 2021-06-09 Impact factor: 5.717