What is a normal blood sugar level in the UK (NHS)?
Normal human blood sugar = 4-6 mmol/L.
How are prediabetes and diabetes diagnosed?
By testing your blood sugar (and HbA1C) levels.
Blood glucose in prediabetes and diabetes
- Normal human blood sugar = 4-6 mmol/L
- Prediabetes is diagnosed if your random blood sugar = 7-11 mmol/L (twice)
- Diabetes is diagnosed if you have a random blood sugar > 11 mmol/L (or a fasting blood sugar > 7 mmol/L) (twice).
Summary
We have described what is a normal blood sugar level in the UK (NHS). We hope it has been helpful.
Other resource
How do you diagnose diabetes and prediabetes?
Last Reviewed on 5 April 2024