Read that deeply and you stop guessing at which bacteria are there, and start knowing what each one can do. That is the difference between a formula for you and a formula for someone roughly like you.
Easier to say what we are not. Three things this is regularly mistaken for, and why none of them is it.
One blend of bacteria, made the same for everyone, decided long before anyone looked at a single gut. Convenient for whoever is making it. Ours is chosen strain by strain from your sample.
A synbiotic pairs bacteria with fibre, which is right in principle and generic in practice. We pair each strain with the fibre it feeds on, at the dose your gut ferments.
A stack is what you build yourself out of labels, forum threads and hope. This is one formula, built from a reading, signed off by a scientist before it is made.
One formula, built from your own reading. Live cultures, the fibres that feed them, and the vitamins and minerals your levels call for — nothing in it your biology did not ask for.
We start by reading you — two ways on Core, three on Advanced. We never start with a formula and look for who it fits.
We find out exactly which bacteria are in your gut, and what each one can do. Everything in your formula starts here.
Every planWhat you want to work on, what you already take, and anything a doctor should know. So your formula fits your life.
Every planA blood test shows which of your levels sit lower than average, and your formula is built around that. Measured again next cycle.
AdvancedNothing goes into your formula without a reason.
The same gut. The same microbes, read two completely different ways.
Every microbe is just a dot. All you learn is that it exists.
A list of names. No idea what any of them do.
Every name, the job behind it, and the jobs nobody can do.
Ten minutes of your time buys three weeks of ours. Sequencing, reading, building, sign-off. None of it can start before your sample arrives, which is the whole point.
A supplement that could ship tomorrow was made before anyone looked at you.
That is what most microbiome tests deliver for around €150. A list, a percentage beside each name, and a cheerful note about eating more fibre. It looks like science. It is an inventory.
Impressive to look at. Impossible to act on. And that is the entire deliverable.
Knowing you carry 4.3% Bacteroides vulgatus is trivia until someone works out what it is doing, who it is doing it with, and whether that is a problem. Most of the category stops before that, because a list is cheap to produce and looks like proof. We read it three ways instead.
Not by name. By the job each species actually performs, then checked against the range that job should sit in.
Because a team can be the right size and still be losing. Four ratios show whether the cascade is doing its job.
Five pillars, one number, and the name of your weakest pillar. That is the one your formula is built to move.
Across more than 8,000 studied guts, the same symptoms keep tracing back to the same eight mechanisms. Each one needs a different formula.
The protein-fermenting team has grown past its range. That tips the gut toward protein for fuel, which usually shows up as more gas and a less favourable mix of by-products.
Bifidobacteria are scarce, so the acetate base the rest of the ecosystem feeds on is thin. It is the most common pattern we see, in roughly 44% of samples.
Fibre goes in but little comes of it. The fibre-to-butyrate chain is underfed, so there is little capacity left to turn it into butyrate.
Mucus-layer bacteria have overgrown while the butyrate team runs thin, so the gut mucus layer tends to get used as fuel and left under-supported at the same time.
One mucus-feeding strain, Akkermansia, has overgrown and crowded out the fibre-handling teams, so the butyrate chain falls away and the gut leans on its own lining for fuel.
Several teams are low at once, often after antibiotics or illness. The whole chain needs rebuilding, not a single fix.
The microbiome itself can read well here. This pattern comes from your questionnaire, not your composition: stress and sleep are pulling on the gut through the gut-brain axis.
All six teams sit within range and the ecosystem is carbohydrate-driven. No acute imbalance to correct.
The 200–400 species in your sample, sorted into six teams by the job they do and checked against each team’s healthy range.
Team sizes show who is there. These four show whether the fermentation cascade is actually working.
Where the formula would focus: Crowd the protein-fermenters back out with competitive and antimicrobial strains, and tip fermentation back toward fibre.
Where the formula would focus: Rebuild the bifidobacteria with selective strains and fibres (GOS, inulin), so the rest of the chain has something to cross-feed on.
Where the formula would focus: Restore the fibre-fermenting teams and the short-chain fatty acids they produce, with an oat beta-glucan-led blend.
Where the formula would focus: Support the mucus layer and rebuild butyrate, easing the load on the mucus layer.
Where the formula would focus: Give the fibre-handling teams room to expand and crowd the overgrown strain back out, with a high-load fibre blend.
Where the formula would focus: Re-seed the depleted teams together, rebuilding the whole chain rather than chasing one team at a time.
Where the formula would focus: Bring in the Lpc-37 live-culture strain alongside whatever ecological work the reading needs.
Where the formula would focus: Protect a good ecosystem and keep it steady, rather than forcing change it does not need.
gut metagenomes your reading is benchmarked against: a large, curated reference set.
reference metagenomes
countries represented in that set, so a healthy baseline is not drawn from one population.
countries in that set
signature species tracked against peer-reviewed references, in every reading.
signature species tracked
Once we can see what your gut can do, we build one formula for it and nothing else. No two formulas come out the same, because no two readings are. Here is what goes into one, and how every choice gets made.
The live cultures and prebiotic in your formula, dosed to work as one and decided by your reading.
Living bacteria you add to the gut, to top up the teams that are running short.
The fibre those bacteria feed on. Their food source, nothing more complicated.
Both together: the exact fibre these strains can use, in the right amount, so they work as one system.
We do not add generic bacteria. We use strains: specific, named, trademarked versions of a bacterium, each with its own published research. A label that reads “probiotic blend” is naming none of this. Here is every one we work with.
One formula draws on a handful of these, chosen by your reading, never by what we have in stock.
Every strain arrives paired with the exact fibre it feeds on. Which fibres, and how much of each, follows how your gut ferments — the same fibre behaves differently in every gut. Generic fibre is a guess. This is matched and measured.
A few fibres, chosen from dozens. Only the ones your strains can actually use, each paired to the strain it feeds and dosed to the range you handle. Too little does nothing, too much brings the bloat. Two people never get the same blend.
The cultures and their fibres are the base. On top comes the rest of a 98-ingredient library, and only the parts your life asks for.
Twenty-one vitamins and minerals, forty-five botanicals and compounds, every one of them vetted by our science board before it enters the library. Your formula draws only the ones your goals, lifestyle and diet call for.
What you have said you want to work on, in your own words.
What you already take, your diet and lifestyle, and anything a doctor should know.
The shortfalls common enough to check regardless of what you asked for.
Every item traces back to something we read or something you told us. Nothing is in there by default.
Everything above is in every plan. Advanced adds three things, and they work as one loop: we measure again, we rebuild from the new numbers, and we add a blood panel so the doses land on measured levels rather than on how you say you feel.
We re-read your gut and your blood on the same methods, so the new numbers are comparable to the old ones rather than a fresh opinion.
Your formula is not topped up from the last one. It is built again from the new reading, so strains and doses follow where your gut has actually got to.
Your gut read says what your microbes can do. A blood panel says what actually reached you, so doses land on measured levels instead of on symptoms.
You can start on Core and move up at any cycle boundary. Your existing reading carries over, so nothing is re-collected and nothing restarts.
The science here is young, and reading a gut this deeply sits at its edge. So we built a board to govern it: researchers who design the method, run it, and check it from outside, and hold every formula to what the evidence backs, not what a label would like to claim.
One pipeline, the same hands every time: the people who read your sample, work out what it means, and hold the build to clinical standards.
PhD Bioinformatics, University of Luxembourg. Designs and runs the nb1 science pipeline end to end.
“The hard part of this work is leaving things out. If your reading doesn’t call for an ingredient, it isn’t in your formula, however good it looks on a label.”
“Anyone can list the bacteria in a sample. The real work is reading what that community is set up to do, because that’s what we build from.”
“An average is comfortable and almost always wrong for the person in front of you. Reading one gut properly is the only way to act on it.”
“A result you can’t reproduce isn’t a result. Every step from sample to formula has to hold up to the same checks, twice.”
“Personalised nutrition starts with understanding the microbiome beyond which microbes are present: what they are doing, how they affect health, and what we can change.”
Their job is to find where the science reaches further than the evidence allows, and to say so, before any of it reaches your formula.
“My role is to look for where the science is stretched too far. I keep agreeing to stay because, so far, it holds.”
“Plenty of products call themselves personalised. Building from a real reading of the ecosystem is a different thing entirely, and it shows in the formula.”
Your kit ships first; your formula is produced after your analysis, never before.
We read your gut, and build your formula from it.
Prefer no commitment? £99/mo, month-to-month, cancel anytime.
Gut and blood. Your formula rebuilds every cycle.
Four months is the minimum cycle, the window biology needs to shift.
Charged only when your formula is made, never before your analysis completes.
The minimum window biology needs to shift, not a contract trick.
The analysis is the product. It is in your subscription, not an add-on.
Renews automatically each cycle; cancel up to 30 days before renewal. Prices in GBP; any currency conversion or FX fee is set by your bank.
