Reducing Carb intake can help people with diabetes
Reducing fat intake can help obese people with diabetes
Exercise has a GLUT 4 effect which helps people with diabetes
Exercise uses both a higher absolute amount and percent of carb for metabolism the higher the intensity of the exercise
Reducing Carb intake hinders Anaerobic Glycolysis making long duration high intensity exercise more difficult
Ask health professional about insulin dosing based on meals & exercise