Integrating nutritional screening and psychoeducation into psychological assessment and treatment
Nutritional psychology has developed a growing evidence base linking diet quality to the onset, persistence, and improvement of psychological disorders, yet nutrition remains largely absent from psychological assessment and treatment. This conceptual paper proposes a framework for integrating nutritional screening into psychological assessment and nutrition-related psychoeducation into psychological treatment, consistent with a psychologist’s scope of practice. Drawing on a clinical vignette of a woman with long-standing obsessive-compulsive disorder whose symptoms declined substantially during a 12-week whole-food dietary intervention that eliminated ultra-processed foods, the authors argue that diet should be considered a potential predisposing, precipitating, or perpetuating factor in clients’ presenting concerns. They recommend assessing typical dietary intake through open-ended inquiry and the NOVA food-processing classification, screening for disordered eating, perfectionism, and rigid food rules before and during dietary change, addressing cost barriers through food literacy, and supporting adherence with behavior change techniques and brief, individualized, shame-sensitive psychoeducation, with referral to dietitians when needs exceed the psychologist’s competence. The authors further identify training in nutritional psychology, through university programs or continuing professional development, as essential for overcoming competence-related barriers to practice. As a conceptual paper supported by a single case illustration, the framework offers practice recommendations rather than empirically tested guidelines, and its effectiveness and feasibility in routine psychological care remain to be evaluated. [NPID: Nutritional Psychology, barriers, psychoeducation, assessment, scope of practice]
Year: 2026
