What are the recommended targets for HbA1c in adults with Type 1 Diabetes, and how often should they be monitored?

Guideline-aligned answer with reasoning, red flags and references. Clinically reviewed by Dr Kola Tytler MBBS CertHE MBA MRCGP.

Posted: 14 August 2025Updated: 14 August 2025 Guideline-Aligned (High Confidence) Clinically Reviewed
Dr Kola Tytler MBBS CertHE MBA MRCGPClinical Lead • iatroX

The recommended target HbA1c level for adults with type 1 diabetes is 48 mmol/mol (6.5%) or lower, to minimize the risk of long-term vascular complications ,.

An individualized HbA1c target should be agreed with each adult, taking into account their daily activities, aspirations, risk of hypoglycaemia, and comorbidities ,.

HbA1c levels should be measured every 3 to 6 months in adults with type 1 diabetes ,,.

More frequent testing may be considered if blood glucose control is changing rapidly or if treatment regimens are altered ,,.

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What are the recommended targets for HbA1c in adults with Type 1 Diabe