If you can test it, we can track it — all test results, including the ones from your favorite labs.

Metabolic Analysis Markers (Urine)

Indoleacetic Acid (IAA)

Optimal Result: 0 - 4.2 mmol/mol creatinine.

A tryptophan metabolite that may be produced by GI bacteria or, rarely, it may be a marker for Hartnup's disease. Supplementation with tryptophan or 5-hydroxy-tryptophan (5HTP) may elevate levels, but a high value does not indicate the need to reduce or eliminate intake. Urine amino acid testing may confirm Hartnup’s disease.

What does it mean if your Indoleacetic Acid (IAA) result is too high?

POSSIBLE CAUSE:

- Malabsorption of tryptophan
- Hypochlorhydria

Additional Investigations:

- Investigate possible causes of malabsorption
- IP
- IgG Food Sensitivity
- CDSA

TREATMENT CONSIDERATIONS:

- Mucosal support
- Elimination diet
- Betaine HCl
- Digestive enzymes

If you can test it, we can track it — all test results, including the ones from your favorite labs.

10 000+ happy clients
100% satisfaction
★★★★★ customer support

Essential Plan


  • Monthly subscription
  • Instant interpretation
  • Use the free self-upload form
  • Additional charge for upload service
  • 1500+ biomarkers explained
  • Recommendations
  • Cancel anytime

Advanced Plan


  • Yearly subscription
  • Instant interpretation
  • We upload five reports for you
  • Use the free self-upload form
  • 1500+ biomarkers explained
  • Nutrition Recommendations
  • Online support
  • Cancel anytime

Own It For Life premium plan


  • No subscription
  • Unlimited access
  • Unlimited storage
  • Instant interpretations
  • We upload ten reports for you
  • Use the free self-upload form
  • 1500+ biomarkers explained
  • Nutrition Recommendations
  • Dedicated support

We implement proven measures to keep your data safe.

At HealthMatters, we're committed to maintaining the security and confidentiality of your personal information. We've put industry-leading security standards in place to help protect against the loss, misuse, or alteration of the information under our control. We use procedural, physical, and electronic security methods designed to prevent unauthorized people from getting access to this information. Our internal code of conduct adds additional privacy protection. All data is backed up multiple times a day and encrypted using SSL certificates. See our Privacy Policy for more details.

General Data Protection Regulation (GDPR). HIPAA compliance for healthcare professionals