The objective this study was to describe the methodology and implementation of lifestyle change program in individuals at cardiometabolic risk seen at the public health system in Sao Paulo. The Programa de Prevenção de Diabetes Mellitus (PDM) aims at improving the overall metabolic profile of individuals with prediabetes or metabolic syndrome without diabetes; its goals were > 5% weight loss, dietary fiber intake > 20 g per day, saturated fatty acids intake < 10% per day, and > 150 minutes of physical activity per week. The first edition of the PDM lasted 18 months and involved an interdisciplinary team (endocrinologist, psychologist, nutritionist, and physical educator) to plan and conduct group sessions with the participants. The structure and systematic of the sessions were planned using a psychoeducative approach in order to facilitate the process of lifestyle changes. Based on the Experience with the PDM, some reflections and recommendations are made. This study may indicate ways for health professionals to tailor local care conditions and promote a healthy lifestyle, working with a new perspective.