Which tests measure Glycine, 24-Hour Urine?

Glycine, 24-Hour Urine is measured in 1 test on BiomarkersLabs.com, including NeuroBasic Profile — 24 Hour Urine.

Biomarker Reference · Gly

What does the Glycine, 24-Hour Urine test measure?

Q: What is the reference range for Glycine, 24-Hour Urine?

The standard reference range for Glycine, 24-Hour Urine is # REVIEWER FLAG: Confirm Doctor's Data reference range for urinary glycine — glycine is excreted in urine in substantial quantities as part of normal amino acid metabolism; range is highly platform-specific.. Reference ranges vary by laboratory and assay platform — interpret in context of the issuing laboratory's stated range.

Glycine, 24-Hour Urine (Gly) is a clinical biomarker used in neurological-mental-health assessment. Glycine serves dual roles as an inhibitory neurotransmitter — acting at glycine receptors in the spinal cord and brainstem — and as a major component of collagen, glutathione synthesis, and one-carbon metabolism. It is measured in 1 laboratory test on BiomarkersLabs.com.

Reference Range: # REVIEWER FLAG: Confirm Doctor's Data reference range for urinary glycine — glycine is excreted in urine in substantial quantities as part of normal amino acid metabolism; range is highly platform-specific.
Units: µmol/24h
Measured In: 1 test
Category: Neurological

Functional medicine optimalNo standardised functional medicine optimal range. # REVIEWER FLAG: Confirm Doctor's Data documentation.

What is Glycine, 24-Hour Urine?

Glycine serves dual roles as an inhibitory neurotransmitter — acting at glycine receptors in the spinal cord and brainstem — and as a major component of collagen, glutathione synthesis, and one-carbon metabolism. Urinary glycine reflects a combination of protein catabolism, hepatic glycine conjugation, and renal tubular handling rather than central glycinergic neurotransmission directly.

Why is Glycine, 24-Hour Urine measured?

In functional medicine frameworks, urinary glycine is assessed as a marker of glycine availability for neurotransmitter and metabolic functions. Low glycine output may suggest depleted reserves affecting inhibitory neurotransmission, collagen synthesis, and glutathione production. It is used to guide glycine supplementation in protocols addressing sleep quality, spasticity, and oxidative stress support.

Reference ranges

Standard reference: # REVIEWER FLAG: Confirm Doctor's Data reference range for urinary glycine — glycine is excreted in urine in substantial quantities as part of normal amino acid metabolism; range is highly platform-specific.
Functional medicine optimal: No standardised functional medicine optimal range. # REVIEWER FLAG: Confirm Doctor's Data documentation.
Units: µmol/24h

Reference ranges vary by laboratory and assay platform. Interpret in context of the issuing laboratory's stated range.

Tests that measure Glycine, 24-Hour Urine

1 test on BiomarkersLabs.com include this biomarker.

BML-NMH-001Comprehensive

NeuroBasic Profile — 24 Hour Urine

Glycine, 24-Hour Urine reference range in this test: # REVIEWER FLAG: Confirm Doctor's Data reference range for urinary glycine — glycine is excreted in urine in substantial quantities as part of normal amino acid metabolism; range is highly platform-specific.

Related clinical conditions

Related Biomarkers

Frequently measured alongside

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