How can a diabetic prevent exercise-induced low blood sugar?
Asked by on Sep 02, 2010
in Health Conditions
I am a diabetic on medication. My glucose level is well controlled except for when I exercise or when I limit my food intake. I become very hungry, my glucose drops to 2.4 mmol and I shake. How do I prevent that from happening?
To prevent low blood sugar from exercise, test your glucose 30 minutes before you start. If it is lower than 100 mg (5.6 mmol/L), then eat or drink 15 to 20 grams of carbohydrate such as 2 saltines and 4 ounces of juice. Check your glucose again in 20 minutes and if it is still low, then eat a bit more carbohydrate, but if it is 100 – 250 mg (5.6 – 13.9 mmol/L), then you are good to go. However, always carry at least 15 grams of a fast-acting carbohydrate like 5 Lifesavers or 3 glucose tablets to eat whenever you feel shaky or ravenous or have other signs of low blood sugar. At the end of your exercise session, check your gulcose again and eat a small or large mixed meal if needed. Note your patterns for adjustments in the future. It may help to routinely exercise two hours after a meal.