Serum or Plasma Free Fructose Concentration (Mass Concentration)

Why Is This Test Done?

Your healthcare provider may order this test if you have symptoms or risk factors for fructose-related conditions, such as metabolic disorders, liver concerns, or if you’re undergoing a study on sugar metabolism. It can also be part of a broader evaluation for suspected fructose intolerance or unusual sugar metabolism.

What Does the Test Involve?

A blood sample is taken from a vein in your arm. The sample is then processed to measure the concentration of free fructose. The test is typically done in a lab using a specialized analytical method to detect and quantify the sugar accurately.

What Do Results Mean?

Results are reported as a mass concentration of fructose in your blood or plasma. While reference ranges can vary by lab, elevated levels may suggest increased dietary fructose intake, certain metabolic conditions, or other health concerns. Your doctor will interpret results in the context of your overall health and symptoms.

What Are Possible Causes of Abnormal Results?

Elevated free fructose levels may be linked to high fructose intake from foods like fruits, honey, or processed sugars. Certain metabolic disorders, liver disease, or genetic conditions could also affect fructose metabolism. Low levels may indicate normal metabolism or reduced intake.