The ADAPT-M (Avoiding Diabetes after Pregnancy Trial in moms) study will address these gaps by evaluating a home-based exercise and diet intervention that has been designed specifically for new mothers with recent GDM. An internationally renowned team of investigators and collaborators was brought together to create this intervention. This trial has been carefully designed based on our previous work, an extensive literature review, and the input from co-investigators with expertise in diabetes research, gestational diabetes, prenatal and postpartum care, diabetes education programs, home-based exercise coaching, nutrition and diet interventions, and clinical trials. Investigators will work closely with the Clinical Trials Unit of the Applied Health Research Centre (AHRC) of University of Toronto to develop, implement, and evaluate this trial.