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Butyric acid (serum/plasma)

Published: August 9, 2026Updated: August 16, 2026

This test measures the level of butyric acid, a short-chain fatty acid produced in the body, often linked to gut health and metabolic processes.

Quick summary

["Butyric acid levels may reflect gut function and energy metabolism."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
87487-5
Short code
MAB-CHMINACA butanoate Ur Ql Cfm
Synonyms
MAB-CHMINACA butanoate Ur Ql Cfm
Category
chemistry
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
confirm
Specimen volume
10 mL
Stability
Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

Why Is This Test Done?

Your healthcare provider may order this test to assess gut health, metabolic function, or to investigate symptoms like abdominal pain, diarrhea, or unexplained fatigue. It can also be part of broader metabolic or digestive evaluations.

What Does the Result Mean?

Butyric acid levels can vary based on diet, gut microbiome, and overall health. Abnormal results may suggest conditions affecting digestion, metabolism, or systemic inflammation.

How Is the Test Performed?

A blood sample is drawn from a vein in your arm. The sample is collected in a tube and sent to a lab for analysis using a specialized method to measure butyric acid concentration.

What Are Common Causes of Abnormal Results?

Elevated levels might be linked to gut dysbiosis, certain metabolic disorders, or conditions affecting fat metabolism. Lower levels could indicate malabsorption, gastrointestinal diseases, or other metabolic issues.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Butyric acid is a byproduct of gut bacterial fermentation, playing a role in maintaining gut barrier integrity and energy production. Abnormal levels may indicate underlying digestive or metabolic dysfunctions that require further evaluation by a healthcare provider.

Short name

Serum/plasma butyric acid

Frequently asked questions

What factors could affect my butyric acid test results?
Dietary changes, particularly high-fiber or fermented foods, can temporarily influence butyric acid levels. Certain medications or metabolic conditions may also impact results. Always discuss your recent diet and medications with your provider before testing.
Is this test painful or uncomfortable?
The blood draw is typically quick and may cause mild discomfort or bruising at the site. Most people tolerate it well, and the process usually takes less than 5 minutes.
How soon will I get my results?
Results are usually available within 1–3 business days, depending on lab processing times. Your provider will explain the findings and next steps during your follow-up visit.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy