The goal of the study was multi-faceted: to develop and test a dietary intervention based on an anti-inflammatory, whole-food-based diet pattern using continuous feedback from early psychosis patients and their families, evaluate the feasibility, satisfaction, and adherence of a 5-week diet intervention, and explore whether the intervention effects weight, metabolic parameters, biomarkers, symptoms of psychosis, and overall well-being. The intervention included individualized dietary counseling, diet education, meal plans, and recipes.