Short-term glycation marker
Quality and Security
High-quality testing run in a CLIA-certified and CAP-accredited lab in Santa Clara, California.
About Glycated Serum Protein
${ activeTab.tab_content.text }
Loading...
About Glycated Serum Protein
Overview and History
Glycated Serum Protein is a biochemical marker formed when glucose binds nonenzymatically to circulating serum proteins; the measured signal is often reported as "fructosamine" in clinical labs. Because albumin is the most abundant serum protein, GSP largely reflects glycated albumin and other short‑lived plasma proteins rather than long‑lived hemoglobin.
Historically used as a short‑term glycation measure complementary to longer‑term markers, GSP assays quantify ketoamine linkages formed by glycation. The marker’s biological function is not active signaling but a passive record of recent glucose exposure determined by the turnover rate of serum proteins (roughly 2–3 weeks).
Interpreting Highs and Lows
Elevated GSP generally corresponds to higher recent average blood glucose exposure or increased glycation activity over the prior 2–3 weeks. However, higher measured values can also be influenced by unusually high serum protein concentrations or analytical factors.
Low GSP may indicate lower recent average glucose exposure, but can also result from reduced serum protein/albumin levels, increased protein loss or turnover, or lab interference. Interpretation relies on the full Foundation Zoomer panel—especially serum protein, albumin, fasting glucose, and related metabolic markers—to distinguish systemic causes from changes in short‑term glucose exposure.
Featured Test
GSP is included to capture short‑term glycemic exposure that complements fasting glucose, insulin measures, and longer‑term markers. It helps reveal recent shifts in metabolic balance that may not appear on longer‑window tests, supporting pattern recognition and personalized planning within the Foundation Zoomer’s integrated metabolic cardiovascular domain.
Related Articles
When most people think of histamine, they picture allergy symptoms, sneezing, hives, and congestion. But histamine is far more than an allergy molecul...
A common theme among many of my nutrition clients is that despite eating well, staying active, and managing stress, they feel worn down, inflamed, and...
Hormone imbalances are among the most common complaints we hear as functional and integrative medical practitioners. However, many of us are missing a...
.png)
Oxidative stress is a crucial determinant of cellular function and longevity, representing the imbalance between free radicals and antioxidants in the...
Results trusted by over 18,000 functional wellness professionals
We’re the leading provider of specialty wellness lab testing because we develop our testing with rigorous, ongoing research by top clinical experts, doctors, and scientists.
-1.png?width=542&height=427&name=shutterstock_2371998817%201%20(1)-1.png)
.png?width=207&height=108&name=Group%201410104259%20(1).png)
The gold standard of accuracy in the lab industry
Our tests run on a proprietary 3Dense microchip technology platform that boasts unrivaled specificity and sensitivity. While most other labs carry only CLIA certification, we're CAP-accredited by the College of American Pathologists.
.png?width=487&height=356&name=Frame%201410104197%20(3).png)
.png?width=187&height=63&name=category%20Card%20text%20(1).png)
.png?width=202&height=63&name=category%20Card%20text%20(2).png)
Mary Beth Augustine
DCN, RDN, FAND- Lead Clinical Educator
Suzanne Barker
MS, RDN, LD, CTTS, CGP- Clinical Educator
Suzette Garcia
MSc- MHNE- Clinical Educator
Brooke Mader Ganev
MS, CNS, LDN, FDN- Clinical Educator
Adair Anderson
MS, RDN, LDN- Clinical Educator
Lillie Luu Nguyen
DCN, CNS, LDN- Clinical Educator
Jason Barker
ND- Clinical Educator
Emaline Brown
ND- Clinical Educator
Dana Filatova
DCN, CNS, LDN- Clinical Educator
Jessy Dhanjal
ND- Clinical Educator
Nour Amri
MS, LDN, CNS, CKNS- Clinical Educator
