Objective. Using cookery to stimulate good habits for the health promotion people with diabetics. Methods. Maguerez arc-based problematisation with twenty adult people with diabetes, attended at Basic Health Units in Ouro Preto, Brazil, voluntarily participated in monthly meetings, four/semester, lasting ~120 minutes each, totalling eight meetings. Results. Through cooking, importance of sharing health care strategies, strengthening collective spaces for case discussion and promoting permanent health education involving people with diabetics was highlighted. The problematisation as a guiding instrument improved the ability to choose and prepare food for healthier nutrition, improved the form of family life and relationships, especially of diabetic individuals living alone, and provided a better quality of life. Conclusion. The method changed eating practices and improved the self-care processes of diabetics. It also reduced the side effects of the disease and represented a suitable, low-cost tool for improving the health of diabetics.