Low energy reporting may increase in intervention participants enrolled in dietary intervention trials.

Objective: To examine differences in low energy intake reporting between intervention and control groups during a dietary intervention trial.

Design: Retrospective data analysis from a subcohort of participants in the Polyp Prevention Trial (PPT), a 4-year, multisite, randomized, controlled dietary intervention trial. Intervention consisted of educational material and counseling sessions supporting a low-fat, high-fiber diet.