Workshop No. 2 will inform the benefits of breastfeeding for the child and the mother (including its impact on weight loss during the postpartum period, especially important in obese women). As in the previous workshop, the objective will be to obtain the application of the recommendations on diet during breastfeeding. The general message will be adapted to the problems specific to obese women: work on the social, educational, family, removal of beliefs and motivational brakes. This workshop will be led by a dietician and a midwife and will take place between the 5th and 8th week of the program.