Welcome! To our new Beyond Type 1 and Beyond Type 2 website! Hear from the team about the change.

Diabetes + Exercise

Exercise is key to a healthy lifestyle. You should always consult your doctor before engaging in strenuous exercise to be sure you are physically able though.

Editor’s Note: Consult your doctor before engaging in a new exercise regimen. Exercising with type 1 diabetes can lead to potentially dangerous swings in your blood sugar levels.


Exercising with type 1 diabetes is complicated. The type of exercise, time of day, length of your workout, types of insulin, pump vs. injections, the last time you ate, etc. are some of the many variables that determine how it will affect your blood sugar.

But regular exercise is also an important part of managing type 1 diabetes and your general health, so learning how to make it part of your routine is worth the effort.

The primary risks of physical activity for the athlete with type 1 diabetes (T1D) are essentially two:

To prepare for hypoglycemia, keep at least 15 to 20 grams of fast-acting carbohydrates on hand at all times.  Aerobic exercise, such as jogging, tends to drive blood glucose down depending on how much insulin is already active in your bloodstream. Learning how to adjust insulin doses and time your exercise accordingly can significantly reduce your risk of hypoglycemia during and after exercise.

Certain high-intensity or anaerobic exercises, such as weight lifting or sprinting, can increase blood sugar levels. Learning how to adjust insulin doses and time your exercise accordingly can significantly reduce your risk of hyperglycemia during and after exercise.

Here, we offer a variety of resources to help you manage your blood sugar around different types of exercise and different methods of controlling the many variables that make it complicated.