An amino acid that fuels nitric-oxide production and circulation.
Arginine is an amino acid the body usually makes for itself, but extra may be needed during growth, illness, or stress. It is the direct precursor of nitric oxide, a molecule that helps blood vessels relax, and it takes part in the urea cycle that clears ammonia.
It is measured as part of a plasma amino acid profile. Levels give insight into protein metabolism and the urea cycle. Unusual readings can point to inherited urea cycle disorders and are interpreted alongside the rest of the panel.
Aniva reads your result against research-backed ranges, not just the lab's wide normal. The reference shown below is specific to this biomarker.
| Group | Adult fasting plasma range |
|---|---|
| Adults | 35 to 125 µmol/L |
Amino acid ranges vary by laboratory and method. They are best read as part of the full plasma amino acid profile, not in isolation.
Recent protein intake, arginine supplements, fasting state, and time of day affect the result. A fasting morning sample gives the most reliable reading.
Read as part of the full plasma amino acid profile.
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