Background: A serious non-communicable illness with emerging incidence international is type-2 diabetes. Type-2 diabetes arises when human body cannot utilize the insulin it generates and produces insufficient amounts. The main factor contributing to early mortality is type-2 diabetes. If not treated appropriately, it can cause a variety of morbidities, such as neural disorders, stroke, heart disease, blindness, kidney illness, amputations of extremities, and even death. Objective: This review article aimed to throw the light on the effect of lifestyle modification for management and prevention of type 2 diabetes mellitus. Methods: We searched PubMed, Google Scholar, and Science Direct for relevant articles on Lifestyle modification, type 2 diabetes mellitus, management and prevention. However, only the most recent or thorough study was taken into account between January 2004 and January 2023. The authors also evaluated the value of resources culled from other works in the same genre. Therefore, documents written in languages other than English have been ignored due to a lack of translation funds. Unpublished works, oral presentations, conference abstracts, and dissertations were generally agreed upon not to qualify as scientific research. Conclusion: successful lifestyle variations, involving weight loss counselling and physical exercise, are the cornerstones of type 2 diabetes prevention.  We discovered that dietary changes, regular exercise, and weight loss are effective long-term methods for reducing the risk of heart disease, renal issues, visual abnormalities, nerve damage, and other issues. All diabetics should get recommendations and prescriptions for physical activity and exercise as a component of managing their glucose control and general health. Depending on the type of diabetes, age, the activity being done, and the existence of diabetes-related health issues, different advice and precautions will be made. Each person's unique demands should be considered when formulating recommendations.