In one study well controlled dogs has a mean of 251 umol/l, against 422 umol/l for moderately controlled and 476 umol/l for poorly controlled cases

For cats, a fructosamine result of <400 umol/l is associated with adequate glycaemic control, whereas results > 400 umol/l (usually >500 umol/l) are consistent with insufficient glycaemic control.

It is suggested that fructosamine levels should be checked at 2 - 3 week intervals until the animal is stabilised on insulin therapy and then every 4 - 6 months.

A chart of blood glucose against time, indicating on the time axis when key events such as feeding, insulin dosing and exercise occurred, can then be prepared.

Insulin resistence, inadequate insulin dosing, or indeed insulin overdosing resulting in Somogyi overswing can then be indentified by studying the resulting glucose curve.

This technique is much less useful in cats, because the species is prone to stress hyperglycaemia.