Classical marble torso on a dark star-flecked field — the Biome Atlas aesthetic

Know your gut.
Own your performance.

The at-home gut microbiome test built for gay men. One score. A clear plan. Zero stigma.

70%

of your immune system lives in your gut. Resilience starts there.

Vighi et al., Clin Exp Immunol, 2008

38T

bacteria call your body home. Their balance sets your digestion, regularity, and recovery.

Sender et al., PLoS Biol, 2016

30g

of daily fiber keeps the machine running. Most men get less than half.

Dahl et al., Am J Lifestyle Med, 2015

Biome Atlas sample report — overall gut score with metrics for microbial diversity, butyrate support, gut balance, and fungal balance
The test

One score. A clear plan.

We sequence your microbiome and turn it into a single gut score — plus the exact moves to raise it. Atlas AI answers the questions you'd rather not Google.

  • Full microbial DNA sequencing
  • An eat-more / eat-less food plan, built on your results
  • Discreet packaging. Private results.

A digestive wellness test for educational purposes — not intended to diagnose, treat, cure, or prevent any medical condition.

Test. Then eat for it.

Every test includes food guidance built on your results — what to eat more of, what to ease off, and why.

Start here

The test

Your full microbiome map, decoded into a plan.

$249 one time
  • At-home collection kit
  • Gut score + digital report
  • Personalized food guidance
  • Atlas AI, on call
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The couples kit

Two kits. Compare maps, fix the menu together.

$399 two kits
  • Everything in the test, ×2
  • Side-by-side gut scores
  • Food guidance for your shared table
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Coming soon

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Biome Atlas isn't ready to ship just yet. Leave your email and we'll let you know the day it goes live.

The bottom line

Confidence back there starts in here.

Fiber, flora, and the science of being ready — candid, evidence-backed, and written for the men it's actually about.

Read the science

Gut science

Sex-positive, science-backed reads on life below the belt.

Two classical marble statues sharing a kiss with golden microbiome particles passing between them
Featured · Microbiome

Kissing and the Microbiome

One ten-second kiss trades tens of millions of bacteria. Here's the science of what your mouth shares — and why a balanced microbiome makes every kiss more confident.

Read the article