Diabetes mellitus is a chronic, metabolic, non-infectious disease that is considered to be one of the deadliest diseases around the world. As of the year 2021. the global speculations suggest that 642 milion people suffer from diabetes, and the prognosis is that until 2040. there will be 642 million people affected by this disease. More than 95 % of adults that have diabetes have diabetes type 2 which can be prevented and treated more effectively than diabetes type 1. Except for diabetes types 1 and 2, gestational diabetes is becoming more common but is still rare in comparison to these two types. Change in lifestyle is necessary and is one of the most important components of the prevention and treatment of diabetes mellitus. That kind of change implies the introduction and ejection of some groceries, specifically, the introduction of some kind of diet and physical activity of moderate intensity, at least 150 minutes a week, according to recommendations. This kind of change in lifestyle regulates the disease and prevents complications, comorbidities, and the progression of the disease. Except for implementing tests, planning, and performing programs, physiotherapists have an important role in the motivation and education of patients and their families about all the diseases they come in touch with. Physiotherapists are, with other health professionals, obliged to take care and motivate sick people and help them in every way possible to increase their quality of life.