Being Overweight Causes Resistance to Insulin

This means that any insulin your body makes (or that you inject) will have a hard time lowering your blood sugar.

This makes good blood-sugar control difficult. In addition, being overweight may raise your blood pressure, which makes you prone to kidney disease and stroke.

Often high blood-fat levels, which contribute to heart disease, also are associated with being overweight.

All things considered, reducing your weight will improve your blood-sugar levels and your health.