When you exercise, check your blood sugar before exercise. Also check it during exercise, if you are exercising for longer than 45 minutes.
Finally, make sure to check it right after exercise, and later on. Exercise can make your blood sugar drop up to 12 hours after you are done.
If you use insulin, ask your doctor when you should eat before you exercise. Also find out how to adjust your dose when you exercise.
Do NOT inject insulin in a part of your body that you are exercising.
Keep a snack nearby that can raise your blood sugar quickly. Examples are:
- 5 or 6 small hard candies
- 1 tablespoon sugar, plain or dissolved in water
- 1 tablespoon honey or syrup
- 3 or 4 glucose tablets
- 1/2 can regular, non-diet soda
- 1/2 cup fruit juice
Have a larger snack if you will be exercising more than usual. You can also have more frequent snacks. You may need to adjust your medicine if you are planning unusual exercise.
If exercise causes a lot of low blood sugars, talk with your doctor. You may need to lower the dose of your medicine.