Stop guessing what your gut needs.
See what's happening in your gut, what to change, and whether it's working.
Is your gut part of the picture?
Much of your immune system lives in your gut. Sound familiar?
Getting ill often, or slow to recover
Read more →
Staying healthy as you age
Read more →
Hormonal changes
Read more →
Irregularity or constipation
Read more →
Low energy or brain fog that doesn't add up
Read more →
Biomesight doesn't diagnose conditions. It shows you what's in your gut.
From guessing to a plan you can track
47 key bacteria and 18 functional markers, with coverage of 6,000+ microbes, compared with tens of thousands of real samples.
Foods, prebiotics and supplements ranked for your results, across leading brands. No own-brand supplements, no brand deals.
Retest and track every score over time.
*603 follow-up survey responses, 2024–2026
Our new Consensus pipeline
Your sample is matched against two current reference databases for more precise, complete results, including methane-producing archaea. Your raw data is always yours to download.
Read how Consensus works →
What's in your report
- Short-chain fatty acid producers (butyrate, acetate, propionate)
- Toxin producers, including hydrogen sulfide and methane
- Detoxification (beta-glucuronidase) and longevity enzymes
- Probiotics, commensals and pathobionts, scored against reference ranges
- Diversity and your Gut Wellness Score
- Gut-barrier indicators (gram-negative and LPS balance)
- Neurotransmitter producers (GABA, dopamine, histamine)
- Lactose and oxalate degraders
- Phylum composition
- Community distributions, medians and percentiles for every result
- Personalised food, prebiotic, probiotic and supplement guidance
How it works
1. Order your kit and return your sample
Free tracked returns from the US, UK, Canada and South Africa. Shipping details
2. Get your results in the app
Typically 1-2 weeks after we receive your sample.
3. Act on them
Follow your guidance, or book a practitioner.
4. Retest and track
See how your scores change over time.
You're not left alone with your results
Questions answered
Email and live chat, normally within 24 hours on working days.
Book a practitioner
Independent practitioners, with member ratings, reviews and experience shown.
Find a practitionerExpert guidance
Guides by Dr Carly Polland ND, Clinical Lead, and Kristina Mitts, Education Lead.
Ready to stop guessing?
Results in 1-2 weeks of receiving your sample.
For practitioners
Free account, Fullscript integration, member referrals, training, and BAAs for US practitioners. HIPAA details
For researchers and biotech teams
Free platform access, bulk FASTQ uploads from other labs, the Cohort Selector and Cohort Analyzer, and research kit pricing.