Development and efficacy of a cognitive dissonance-based intervention program for intuitive eating: A randomized...

Area of Science:

• Psychology
• Behavioral Science
• Nutrition Science

Background:

• Intuitive eating interventions lack standardized methods and consistent adherence to core principles.
• Existing approaches often do not incorporate time-based monitoring or comprehensive principle integration.

Purpose of the Study:

• To develop and evaluate a novel intuitive eating intervention utilizing cognitive dissonance strategies.
• To enhance intuitive eating, positive body image, and exercise motivation while decreasing disordered eating behaviors.

Main Methods:

• A randomized controlled trial involving 110 Brazilian women (18-35 years) assigned to cognitive dissonance, educational, or control groups.
• Intention-to-treat analysis using mixed-effects models assessed outcomes over time (baseline, post-intervention, 4, 24, 48 weeks).

Main Results:

• The cognitive dissonance group demonstrated significant improvements in body appreciation, internal body orientation, and exercise motivation.
• Reductions in restrictive eating were observed post-intervention, with sustained decreases in restrictive, uncontrolled, and emotional eating at 24 and 48 weeks.
• Statistically significant differences favoring the cognitive dissonance group were noted across most outcomes, with effect sizes ranging from small to large.

Conclusions:

• The cognitive dissonance intervention proved effective in fostering intuitive eating and improving body image.
• This intervention successfully reduced disordered eating behaviors, indicating its potential for preventing body image disturbances and eating disorders.
• It represents a valuable supplementary tool for addressing body image concerns and disordered eating patterns.