Metabolic condition
Life expectancy with type 2 diabetes
Type 2 diabetes affects how the body regulates blood sugar and is strongly linked to cardiovascular disease, which is the main route by which it influences life expectancy.
What the research suggests
Large pooled studies, including work from the Emerging Risk Factors Collaboration, associate type 2 diabetes diagnosed in middle age with several years of lower life expectancy on average, often cited in the region of four to six years, though the figure depends heavily on age at diagnosis, blood sugar control, and whether cardiovascular and kidney complications develop.
What changes the outlook
Outlook is meaningfully better with good glycaemic control, blood pressure management, not smoking, and maintaining a healthy weight. Earlier diagnosis with longer exposure tends to carry more risk than later onset.
What helps
- Keeping HbA1c within target
- Managing blood pressure and cholesterol
- Regular physical activity
- Weight loss where relevant
- Not smoking
Estimate your own range
Answer around a dozen short questions and get a five-year age range based on your profile. It takes about two minutes.
Start the estimatorCommon questions
Does type 2 diabetes reduce life expectancy?
Large pooled studies, including work from the Emerging Risk Factors Collaboration, associate type 2 diabetes diagnosed in middle age with several years of lower life expectancy on average, often cited in the region of four to six years, though the figure depends heavily on age at diagnosis, blood sugar control, and whether cardiovascular and kidney complications develop.
What improves the outlook with type 2 diabetes?
Outlook is meaningfully better with good glycaemic control, blood pressure management, not smoking, and maintaining a healthy weight. Earlier diagnosis with longer exposure tends to carry more risk than later onset.
Can I get a personal estimate?
This tool gives a statistical estimate as a five-year range based on your overall profile, including type 2 diabetes alongside your other answers. It is not a prediction. For personal medical guidance, speak to a GP or specialist.