Glucose Metabolism
C-Peptide
A marker of how much insulin the body is making.
metabolismblood-sugarhormoneskidney
About this biomarker
C-peptide is released when the pancreas produces insulin. It is often used to understand endogenous insulin production.
Why it matters
It helps distinguish between low insulin production and other glucose-regulation patterns.
What lower levels may suggest
Low C-peptide can suggest reduced insulin production by the pancreas.
What higher levels may suggest
High C-peptide can suggest increased insulin production.
Common tests
Fasting C-peptide, C-peptide with glucose testing, stimulated C-peptide
Related biomarkers
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