Adherence

Behavior-based interventions targeting diet and/or physical activity are effective in reducing gestational weight gain, although effectiveness varies significantly based on intervention design and sample characteristics.

To reduce excessive weight gain during pregnancy, focus on specific, actionable behavior changes (like adding one fruit serving daily or specific activity goals) rather than just monitoring your weight or receiving vague 'eat healthy' advice. Interventions are most effective when they use theory-based behavior change techniques and are tailored to the individual, especially if you were overweight before pregnancy.