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Clinical terms

Pre-diabetes

Pre-diabetes means blood glucose is higher than normal but not high enough for a diagnosis of type 2 diabetes. It signals a higher risk of type 2 diabetes and heart disease, and that risk can often be reduced.

Also called
prediabetes, borderline diabetes, impaired glucose tolerance, IGT, impaired fasting glucose, IFG
Formerly called

What it means

In Australia, pre-diabetes is identified by impaired fasting glucose (a fasting level of 6.1 to 6.9 mmol/L), impaired glucose tolerance (7.8 to 11.0 mmol/L two hours into a glucose tolerance test), or an HbA1c of 6.0 to 6.4%.

Pre-diabetes does not qualify for NDSS registration. Healthy eating, regular physical activity and, where appropriate, weight loss reduce the chance of progressing to type 2 diabetes.

At PDC Health Hub

Sources and clinical review

Clinically reviewed by
Jeffery Au
Last reviewed:
October 8, 2026
Next review due:
April 8, 2027

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