Motivational interviewing is a technique used to help individuals commit to behavior changes, particularly in weight control. This study aimed to analyze the goals established by overweight postpartum women who received nutritional counseling through motivational interviewing. It is a descriptive study conducted with the intervention group of a randomized clinical trial in Primary Health Care Units in Fortaleza-CE, Brazil. A total of 32 women participated, with a Body Mass Index ≥ 25 kg/m², a high school education, an average age of 30 years, and who were between the first and third months postpartum and breastfeeding. The women attended biweekly motivational interviewing sessions conducted by nutritionists and received guidance based on the Dietary Guidelines for the Brazilian Population for up to six months. Data analysis considered the types of goals chosen, their achievement, and levels of motivation and confidence. The most frequent goal was incorporating fruits, vegetables, and greens into their diet (34.6%). The highest motivation was observed for reducing soft drinks and sweets (15.4%), a goal that also received the highest confidence score (8.5) but was not achieved by any participant. Despite high levels of motivation and confidence, most planned goals were not accomplished. Therefore, motivational interviewing may help identify key dietary behaviors for managing excess weight, even in the face of challenges in goal execution.