How healthy is your gut really?
The Zinzino Gut Health Test measures tryptophan metabolites in your blood and shows how well your gut bacteria are working. Simple self-test from home.

Why take the Gut Health Test?
One simple test – deep insights into your gut health.
High-Precision Analysis
High-performance liquid chromatography with UV and fluorescence detection (HPLC-UV-FLD) measures three tryptophan metabolites: indole-3-propionic acid (IPA), tryptophan (TRP) and kynurenine (KYN).
From the Comfort of Home
Simple dried blood spot self-test (DBS) – no stool sample, no doctor visit needed.
Clear Gut Health Index
Your results are summarized in an easy-to-understand index – with personalized recommendations.
Track Your Progress
Repeat the test after 120 days and compare your values for a transparent overview.
How does the Gut Health Test work?
Order the test
Order your Gut Health Test and receive the test kit at home.
Collect sample
Take a fasting blood drop in the morning and send the sample to the lab by mail.
Get results
In 10–20 days you'll receive your gut health index with personalized recommendations.
Have questions? We're happy to help – free and no obligation.
Frequently Asked Questions
Ready to test your gut?
Find out how well your gut bacteria are really working – with the scientifically validated Zinzino Gut Health Test.
Order Gut Health TestHave questions? We're happy to help – free and no obligation.
Written by Alexander Orlandea, independent Zinzino partner · Last updated:
Which sources are these statements based on?
- Agus A, Planchais J, Sokol H. Gut microbiota regulation of tryptophan metabolism in health and disease. Cell Host & Microbe, 2018;23(6):716–724.
- Vighi G et al. Allergy and the gastrointestinal system. Clinical & Experimental Immunology, 2008;153(Suppl 1):3–6.
- Yano JM et al. Indigenous bacteria from the gut microbiota regulate host serotonin biosynthesis. Cell, 2015;161(2):264–276.