Beta-Aminoisobutyric Acid

A metabolic intermediate of amino acid breakdown.

Last reviewedJune 16, 2026

Plasma

sample type

~5 mL

blood needed

~7 days

results in app

Morning, fasting

best timing

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Why test Reference ranges What you'll learn What affects it How testing works Sources FAQ

In short

Beta-aminoisobutyric acid is a minor amino acid produced when the body breaks down thymine, one of the building blocks of DNA, and the amino acid valine. It is normally passed out in urine, and blood levels are usually low.

Comprehensive Health Check

Reviewed against DGKL reference practice.

Why test this?

It is measured as part of a plasma amino acid profile. Levels are influenced by genetics and metabolism, and some people naturally excrete more. It is read for context within the wider panel rather than as a stand alone test of any single condition.

What is a normal result?

Aniva reads your result against research-backed ranges, not just the lab's wide normal. The reference shown below is specific to this biomarker.

Adult reference values as used by Aniva. Ranges are guidance and can vary by laboratory and method.

Group	Normal range
Adults	Below 5 µmol/L

Sources: Mayo AAQP Plasma Amino Acids

Your Aniva report reads your result against these values together with your age, sex and the rest of your panel.

Ranges are guidance and vary by lab and assay, aligned with DGKL practice. Always read your result against your own lab's reference interval.

What insights will this test give you?

Context within nucleotide and valine breakdown pathways.
Help interpreting the rest of your amino acid profile.
Awareness that some people naturally have higher levels for genetic reasons.

What can affect this result?

What can skew the result

Genetic differences, recent protein intake, fasting state, and time of day affect the result. A fasting morning sample gives the most reliable reading.

Best interpreted with

Read as part of the full plasma amino acid profile.

How is this tested?

Sample

Plasma

Blood needed

~5 mL

Method

Ion-exchange chromatography or LC-MS/MS

Best timing

Morning, fasting

Sources. The evidence behind this

Mayo Clinic Laboratories: Amino Acids, Quantitative, Plasma
MedlinePlus: Plasma amino acids

Common questions

Which Aniva panels include this marker?

Amino Acids

These tests assess essential, non-essential, and branched-chain amino acids, plus related metabolites and functional ratios.