What is diabetes? – Diabetes Canada

The importance of insulin

Diabetes is a disease in which your body either can't produce insulin or can't properly use the insulin it produces. Insulin is a hormone produced by your pancreas.

Insulin's role is to regulate the amount of glucose (sugar) in the blood. Blood sugar must be carefully regulated to ensure that the body functions properly. Too much blood sugar can cause damage to organs, blood vessels, and nerves. Your body also needs insulin in order to use sugar for energy.

Eleven million Canadians are living with diabetes or prediabetes. Chances are, diabetes affects you or someone you know.

There are three major types of diabetes. Type 2 diabetes is the most common diagnosis, followed by type 1 diabetes. Gestational diabetes occurs during pregnancy, and is usually temporary. In addition, prediabetes is another important diagnosis that indicates an elevated risk of developing diabetes.

Type 1 diabetes is an autoimmune disease and is also known as insulin-dependent diabetes. People with type 1 diabetes aren't able to produce their own insulin (and can't regulate their blood sugar) because their body is attacking the pancreas. Roughly 10 per cent of people living with diabetes have type 1, insulin-dependent diabetes.

Type 1 diabetes generally develops in childhood or adolescence, but can also develop in adulthood. People with type 1 need to inject insulin or use an insulin pump to ensure their bodies have the right amount of insulin.

People with type 2 diabetes can't properly use the insulin made by their bodies, or their bodies aren't able to produce enough insulin. Roughly 90 per cent of people living with diabetes have type 2 diabetes.

Type 2 diabetes is most commonly developed in adulthood, although it can also occur in childhood.Type 2 diabetes can sometimes be managed with healthy eating and regular exercise alone, but may also require medications or insulin therapy.

If you think you or someone you know may have type 2 diabetes, please speak to a doctor or health-care provider.

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What is diabetes? - Diabetes Canada