Fructosamine Unit Converter

Fructosamine is a measure of glycated proteins in your blood. When blood sugar is elevated, glucose attaches to serum proteins (mainly albumin) through a process called non-enzymatic glycation, forming fructosamine compounds.

Because serum proteins like albumin have a shorter lifespan than red blood cells, fructosamine reflects your average blood glucose over the past 2 to 3 weeks. This is a shorter window than hemoglobin A1c (HbA1c), which reflects glucose control over the previous 2 to 3 months.

Fructosamine is especially useful when HbA1c results may be unreliable, such as in people with certain red blood cell disorders, hemoglobin variants, or kidney disease.

Fructosamine forms in the bloodstream when glucose binds to serum proteins, primarily albumin produced by the liver. It is not produced by a specific organ but rather is a byproduct of elevated blood glucose acting on circulating proteins.