Although diabetes is not totally preventable, making healthy lifestyle decisions like dietary changes, increased exercise, and weight loss can help lower your chances of developing it. Those choices can also help prevent further health complications in patients with type 2 diabetes and can also help slow or stop the progress of prediabetes. Here are some tips for lifestyle changes:

• Eat healthy foods like fruit, vegetables, and whole grains. These are lower in fat and calories, and higher in fiber than other foods.
• Aim for a minimum of 30 minutes of exercise every day, with activities like fast walking, bicycling, or swimming laps.
• Lose extra body weight (7% loss) if overweight to help decrease your risk of diabetes. This can also increase your energy level, improve your self-esteem, and keep your heart heathy.

Source:

https://www.mayoclinic.org/diseases-conditions/type-2-diabetes/symptoms-causes/syc-20351193