- Research-minded users who understand the limits
- People participating in a clinician-led or research program
- Anyone treating the report as educational rather than diagnostic
Emerging
TEST PASSPORT · REVIEWED JULY 2026
Consumer microbiome testing
Interesting ecology, limited clinical decision power.Sequencing can describe organisms in a stool sample, but there is no validated universal ‘optimal microbiome.’ Cross-company scores and supplement recommendations are not interchangeable.
ACCESSAt homeStool
TURNAROUND2–6 weeksProvider and location dependent
RELATIVE COST$$$Total downstream cost matters
COMMERCE STATUSEducation onlyNo ranked product yet
HOW TO USE THIS PAGE
Decide whether this test deserves a place in your plan.
- 01Confirm the question
Be clear about what decision the result would change before ordering.
- 02Check fit and preparation
Review who it helps, who should pause and how to protect the quality of the signal.
- 03Plan the response
Know what you will do with a normal, abnormal or unclear result.
01 / WHO SHOULD TAKE IT
Fit the test to
the person.
Testing is useful when the result can change a real decision. These are educational selection criteria, not a diagnosis or personal order.- Diagnosing disease, food intolerance or the cause of nonspecific symptoms
- Prescribing antibiotics, probiotics or restrictive diets from a diversity score
02 / SIGNAL VS. STORY
What it tells you.
What it cannot.
01
Relative abundance of organisms detectable by the method
02
A snapshot that may support research or longitudinal observation
03
Method-specific diversity and functional estimates
01
A stool sample does not capture the entire gut ecosystem
02
Results vary with collection, diet, transit, method and database
03
Clinical outcome evidence for most personalized recommendations is limited
03 / MARKERS + RANGES
Read the panel
without chasing flags.
The report should show its own method, units and laboratory reference interval. Clinical decision thresholds may be different from a lab interval. We do not invent a universal “optimal” range where authoritative guidance does not support one.Use the laboratory unit and method, then interpret with symptoms, trend and the decision this marker can change.
Use the laboratory unit and method, then interpret with symptoms, trend and the decision this marker can change.
Use the laboratory unit and method, then interpret with symptoms, trend and the decision this marker can change.
Use the laboratory unit and method, then interpret with symptoms, trend and the decision this marker can change.
Use the laboratory unit and method, then interpret with symptoms, trend and the decision this marker can change.
Use the laboratory unit and method, then interpret with symptoms, trend and the decision this marker can change.
MEN, WOMEN + LIFE-STAGE CONTEXT
The correct range is personal context—not pink versus blue numbers.
Where biology differs, we call it out. Clinical interpretation should also reflect organs present, hormone therapy, pregnancy, age, medications and health history.
Pregnancy, hormones and pelvic/GI conditions shape symptoms, but current consumer scores do not provide sex-specific treatment rules.
Current consumer scores do not provide validated male-specific optimization targets.
04 / PREPARATION
Protect the quality
of the signal.
The best assay cannot rescue the wrong timing, wrong specimen or wrong question. Follow the ordering clinician and laboratory instructions when they differ from this general guide.Know whether the test uses 16S, metagenomics or another method and what that can resolve.
Follow timing, stabilizer and shipping instructions.
Record recent antibiotics, bowel prep, infection and major diet changes.
REPEAT CADENCENo validated wellness cadence. Repeat only inside a defined research or clinician-led question.
05 / AFTER THE RESULT
Turn the number
into a next step.
- 01
Do not treat a taxon in isolation
- 02
Prioritize fiber diversity and other established behaviors where appropriate
- 03
Use symptom-directed medical testing for clinical questions
DO NOT WAIT ON A CONSUMER TEST
Bleeding, weight loss, fever or severe/persistent symptoms require clinical care
06 / MODERN BIO SELECT
Built for a responsible purchase path.
We will wait for validated decision support, transparent methods and privacy before recommending a winner.Consumer microbiome testing
- Future format
- No ranked product yet
- Price position
- Not currently shortlisted
- Before checkout
- Eligibility · method · privacy · total cost · interpretation · abnormal-result routing
07 / SCIENTIFIC FOUNDATION