Keeping your blood sugars well-controlled 


How do healthy blood sugar levels help prevent a stroke? 

If you have diabetes, your blood sugar levels will be affected. High blood sugar levels can  damage your  blood vessels and increase your chance of a heart attack or stroke. 


What are healthy blood sugar ranges for most people with diabetes?

In the morning before you eat or drink (also called fasting blood sugar): 4 to 7 mmol/L 

After eating (2 hours): 5 to 10 mmol/L

Most people should aim for Hemoglobin A1C of 7% or lower.  This is a blood test that shows how your blood sugars have been over the past 3 months.

How do I keep healthy blood sugar levels?  

Work with your diabetes healthcare team to keep your blood sugars at a healthy level.

The team may include:

To keep healthy blood sugar levels, you should:

  1. Keep track of your blood sugar levels
  2. Eat a healthy diet
  3. Be active every day 
  4. Keep a healthy body weight
  5. Keeping your Hemoglobin A1C levels at 7% or lower. 
  6. Taking your blood sugar medicine or insulin as prescribed

Get a blood test to check your Hemoglobin A1C & every 3 months.


Where to learn more about this topic:

Heart and Stroke Foundation

Toronto Central Healthline
Preventing another stroke