Diabetes is a chronic condition that occurs when the pancreas can no longer make insulin, or the body cannot effectively use insulin.

Insulin is a hormone made by the pancreas that acts like a key to let glucose from the food we eat pass from the bloodstream into the cells in the body to produce energy. The body breaks down all carbohydrate foods into glucose in the blood, and insulin helps glucose move into the cells.

When the body cannot produce or use insulin effectively, this leads to high blood glucose levels, called hyperglycaemia. Over the long-term high glucose levels are associated with damage to the body and failure of various organs and tissues.

An introduction to diabetes

Follow our free 20-minute online course to learn about the main types of diabetes, the warning signs, risk factors and complications.

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Diabetes around the world

589 million

Adults living with diabetes

3 in 4 adults with diabetes

live in low- and middle-income countries

3.4 million

Deaths due to diabetes in 2024

Diabetes facts and figures
853m adults predicted to have diabetes by 2050
Robin Fein, living with type 2 diabetes
Heather Koga, living with type 2 diabetes
252m people with diabetes are undiagnosed
Dr Douglas Villarroel
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