Private GP | Thyroid Health and Functional Medicine

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Organic Acids Comprehensive Urine Test



The Organic Acids Test (OAT) offers a comprehensive metabolic snapshot of our overall health with over 70 markers.  It provides an accurate evaluation of intestinal yeast and bacteria.

Abnormally high levels of these microorganisms can cause or worsen behaviour disorders, hyperactivity, movement disorders, fatigue and immune function. Many people with chronic illnesses and neurological disorders often excrete several abnormal organic acids in their urine. The cause of these high levels could include oral antibiotic use, high sugar diets, immune deficiencies, acquired infections, as well as genetic factors.

This Organic Acids Test also includes markers for

  • vitamin and mineral levels,
  • oxidative stress,
  • neurotransmitter levels,
  • and is the only OAT to include markers for oxalates, which are highly correlated with many chronic illnesses.

If abnormalities are detected using the OAT, treatments can include supplements, such as vitamins and antioxidants, or dietary modification. Upon treatment, patients and practitioners have reported significant improvement such as decreased fatigue, regular bowel function, increased energy and alertness, increased concentration, improved verbal skills, less hyperactivity, and decreased abdominal pain. The OAT is strongly recommended as the initial screening test.

How to order the test

To order the test, please click on the button below and use the Patient Login with these details:

  • User: oliverfrey
  • Password: client

Please note that tests are only available for registered clients!

Additional Information

Sample Type

Urine: 10 mL of first morning urine before food or drink is suggested. Patient should avoid apples, grapes (including raisins), pears, cranberries and their juices 24 hours prior to specimen collection. Avoid arabinogalactan, echinacea, reishi mushrooms, and ribose supplements for 12 hours before collection.

Turnaround time

20 working days

Additional Information / Instructions

The test provides information about metabolites of:

  • neurotransmitters
  • amino acids
  • fatty acids
  • energy production (citric acid cycle)
  • functioning of certain vitamins and minerals
  • toxic metabolites of pathogenic micro-organismss that live in the human gut are also measured (e.g. candida and clostridia)