Another Reason to Quit Diabetes Smoking increases risk for type 2 diabetes. Smoking can lead to insulin resistance, a precursor to type 2 diabetes.Recent finding: Smokers have a 44% higher risk for developing diabetes than nonsmokers.Self-defense: If you smoke, get help quitting from a health professional. Also, maintain a healthy diet and exercise regularly. Want to Keep Reading? Continue reading with a Health Confidential membership. Sign up now Already have an account? Sign in