Other biomarkers, such as fructosamine, 1,5-anhydroglucitol and glycated albumin, provide measures of mean glucose, another good test for hypoglycaemia awareness is to ask, ‘do your symptoms of hypoglycaemia usually occur at a blood glucose level of ≥3.0 mmol/l (≥54 mg/dl) or <3.0 mmol/l (<54 mg/dl) or do you not feel symptoms?’.