diabetes patient Measuring glucose level blood

Diabetes: What You Need to Know

By Dr. Jan Hux, Chief Science Officer, Canadian Diabetes Association

Separating fact from fiction around a disease that affects 11 million Canadians and has a shocking growth rate, with a new diagnosis every three minutes.

Diabetes is a disease with many causes and no known cure. It’s a global issue, but the impact is felt in communities throughout Canada. If you don’t have diabetes, there is a very good chance someone in your family or circle of friends does.

Today, 11 million Canadians live with diabetes or prediabetes. The number of Canadians with diabetes has doubled in the last 12 years and that growth continues with another person diagnosed every three minutes. Diabetes is defined by higher than normal levels of glucose (sugar) in the blood and can lead to serious complications. The personal health burden is significant—diabetes costs five to 15 years of life expectancy; it contributes to 30 percent of strokes, 40 percent of heart attacks, and 70 percent of all non-traumatic amputations as well as being a leading cause of blindness. It’s important that Canadians educate themselves about the disease to recognize if they are at risk.

Type 1 diabetes most commonly begins in childhood and occurs when the body is unable to produce insulin, a hormone that controls the level of sugar in the blood. Approximately 10 percent of people with diabetes have type 1 diabetes.

Type 2 diabetes is the most common type, affecting about 90 percent of Canadians with diabetes. It occurs when the pancreas does not produce enough insulin or when the body does not effectively use the insulin it produces. It usually develops in adulthood, although more children and adolescents are being diagnosed, especially those in high-risk populations, such as Aboriginal Peoples and those of African, Asian, Hispanic or South Asian descent.

A third type of diabetes is gestational diabetes—a temporary condition that develops during pregnancy. Blood sugar levels usually return to normal following delivery; however, both mother and child are at higher risk of developing type 2 diabetes later in life.

Prediabetes occurs when a person’s blood sugar levels are elevated, but not yet at a level high enough to be diagnosed as type 2 diabetes. About half of those with prediabetes will go onto develop type 2 diabetes.

Myths about diabetes will always persist, and it’s important to separate fact from fiction—your health could depend on it.

Myth #1:

Diabetes is the fault of the person who has it, because of bad lifestyle choices or too much sugar.


Type 2 diabetes is a complex problem with roots in genetics, the environment, and individual behaviour choices. It runs in families and few individuals diagnosed with type 2 diabetes do not have at least one relative with it. It is also more prevalent in certain population groups, most notably Aboriginal Peoples.

For some who carry a potent genetic risk for diabetes, no amount of physical fitness or healthy eating will protect them from developing the Food pyramiddisease.

A second contributor to the diabetes epidemic is the environment in which we live—factors such as the walkability of neighbourhoods along with access to nutritious food and local health facilities and services.

For people at risk of diabetes, behaviour choices that promote obesity increase that risk. Improving diet and physical activity levels has been shown to reduce the risk by nearly 60 percent. However, over-emphasizing weight reduction leads to unbalanced messaging around the causes of the disease, such as simply saying it is a result of eating too much sugar. To blame individual behaviour choices is a disservice to those with the disease by creating stigma.

Myth #2:

You should eat more protein than carbohydrates.


This myth is based on the fact that carb-rich foods contribute to a rise in blood sugar. In reality, substituting carbs with protein sources like meat, eggs and milk can lead to an imbalanced diet and weight gain. Follow Eating Well with Canada`s Food Guide to ensure you choose enough foods from all four food groups.

Myth #3:

People with diabetes can’t eat white-coloured food.


White-coloured foods almost always have a healthier alternative—think whole-grain rice or bread—but an occasional indulgence isn’t forbidden. As with most foods, the trick is moderation and portion control. Of course, brightly coloured fruits and vegetables should be a part of everyone’s daily routine. Consult with your health team for advice. You might be surprised at what you can and cannot eat.

Myth #4:

People with diabetes can’t eat their favourite foods.


This is almost always untrue, but living with diabetes does mean being careful about your food choices. Choose smaller portions, and if you’re eating sweets, try substituting  artificial sweeteners for added sugar. A little research into what you’re eating and portion control will allow you to enjoy most of your favourite treats, regardless of diabetes.

Myth #5:

Having diabetes means you’re doomed.


Far from it! Diabetes is a disease, and has to be treated seriously. Scheduled check-ups with your health-care team, watching your diet and medication, regular physical activity and a positive outlook help you lead a long and happy life. In most cases, diabetes can be controlled, as long as you’re committed to staying healthy.

Myth #6:

People with diabetes can’t drink alcohol.


Most people with diabetes can, but in moderation. One rule of thumb is to always stick to beer, dry wines or straight liquor, and steer clear of sugary mixed drinks and cocktails. Alcohol is loaded with empty calories, and can cause unwanted weight gain. The Canadian Diabetes Association (CDA) recommends limiting alcohol to no more than 10 drinks a week for women and 12 to 15 for men.

Learn more about diabetes and you

Early risk detection can help people change habits to prevent the onset of type 2 diabetes and reduce downstream complications. Knowing the risk factors is key to prevention and early detection. If you are over the age of 40, the CDA recommends you get checked every three years, and more frequently if you have any of these risk factors:


  • You have a parent or sibling with diabetes
  • You are a member of an ethnic group at high risk for type 2 diabetes (African, Hispanic, Asian, South Asian, or Aboriginal)
  • You are overweight
  • You have high blood pressure or high cholesterol
  • You have been diagnosed with prediabetes


You cannot prevent type 1 diabetes; however, the CDA believes there are things we can to do to reduce type 2 diabetes rates, including prevention activities that focus on healthy eating, physical activity, and stress reduction.

If you are at risk for type 2 diabetes, you need to talk to your doctor and get tested.

If you have diabetes, work with your health-care team, including a certified diabetes educator, to keep your blood sugar levels in check and get tips to effectively manage your diabetes.


Finally, learn everything you can; knowledge is the key to managing diabetes. The CDA can help with information and resources. Visit www.diabetes.ca or call 1-800-BANTING (226-8464) with your diabetes questions.

Jan Hux, MD, is the Chief Science Officer at the Canadian Diabetes Association. She is a clinician-scientist, trained as a general internist and health services researcher. She holds an MD from the University of Toronto and a Masters in Epidemiology from Harvard. For 20 years, she held a variety of research and executive roles at the Institute for Clinical Evaluative Sciences (ICES) in Ontario, where she was responsible for developing and leading the diabetes health services research portfolio.

*Reprint from our Seniors Health 2016/2017 Issue

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