Skip to content
How it works
Your Biology The Lab The Protocol Our Plans
More
The ingredient libraryThe science boardOur standardsAbout nb1FAQContact
Order your kit

For HYROX & hybrid athletes

The stack built for your sport.

You train for the compromised state: running on tired legs, moving under load, holding pace while your system is redlined. Your gut decides how much of that fuel you actually get. We read yours, then build the formula around it.

HYROX community offer

Your second month is on us.

Just add your email to join the HYROX list and unlock your second month on us, on a 4 or 12-month plan. We'll email you how to start when you're ready.

We'll email you how to claim it. Unsubscribe anytime.

4 and 12-month plans only. The code cannot be used on the 1-month rolling plan.

You're in. You're on the list. Use code HYROXNB1 at checkout on a 4 or 12-month plan, and your second month's on us.
Choose your plan
Tim WenischAlexander Rončevićnb1 science team

HYROX World Champions read their gut with nb1. Every formula is signed off by our science board.

Alexander Rončević, HYROX World Champion Read your gut
Alexander Rončević 2024 HYROX World Champion · Single

What you actually get

A full supplement protocol, built from your biology.

Not a single product, your whole stack. From a library of 125+ ingredients, only the ones your gut reading calls for, each dosed to you, posted to your door every month, presorted and travel-ready.

One subscription, in place of greens powderprobioticomegamagnesiumadaptogens

  • Morning

    Morning protocol, day blister pack

    Activate

    With breakfast

    Live bacteria and daily cofactors, dosed to your reading, to start the day fuelled.

    Pre-packed capsules

  • Evening

    Evening protocol, night blister pack

    Restore

    Before bed

    Targeted recovery and sleep support, included only when your biology calls for it.

    Pre-packed capsules

  • Anytime

    nb1 Precision Prebiotic powder

    Nourish

    Once a day

    Precision prebiotics: fiber matched to your gut's actual fermentation machinery, to feed the species worth growing.

    Powder · 1 scoop

Three parts, one protocol, built only for you.

How it works

Four steps to turn your biology into a stack that's only yours.

From the at-home sample you collect to your first delivery takes about four weeks. Here's what happens at each step.

Why Week 3 matters 3★

Nothing is made in advance. Your formula is only made once we’ve read your results — built for you, and no one else.

The variable no plan controls

Your gut decides how much of your training you actually keep.

Two athletes, same session, same fuel, different results. It comes down to which species live in your gut and how they turn what you eat into what your body can use. We read yours, then build the formula from that.

Tap a node to see what we read in your gut
What your gut reveals

Energy

Your gut bacteria help turn your food into fuel. We read how efficiently that process runs.
What your gut reveals

Focus

Your gut and brain talk constantly, and your bacteria help make the chemicals that conversation runs on. We read the species active in that pathway.
What your gut reveals

Immunity

A large share of your immune system operates in and around your gut, where your bacteria interact with it daily. We read the balance of species involved.
What your gut reveals

Digestion

Your gut bacteria turn fibre into fuel that keeps your gut wall strong, and make vitamins your body can’t produce on its own. We read which of these functions are active.
What your gut reveals

Sleep

The gut is where much of the body’s serotonin is produced, a precursor to melatonin. We read the species involved in that pathway.
What your gut reveals

Recovery

Your gut helps set your body’s stress response — the system that governs cortisol and how you bounce back between sessions. We read it, and where it helps, your formula includes live bacteria studied for that pathway.

We don't promise change. We show it to you.

Retest your gut and see exactly what moved. The same markers, re-measured before and after. One number, objectively re-scored.

80.2
/100
▲ 11.9 pts up from 68.3 Overall microbiome score

The score is what we measure. How it feels is what members tell us, self-reported alongside each retest, not a lab result.

Sleep quality

Sleep deeper

▲ 2.0
6.0 8.0 /10

Self-reported · ~4 mo

Fatigue

Steady energy

▼ 3.0
6.0 3.0 /10

Lower is better · ~4 mo

Bloating

Calmer digestion

▼ 5.0
8.0 3.0 /10

Lower is better · ~4 mo

Stress

Lower stress

▼ 2.0
7.0 5.0 /10

Lower is better · ~4 mo

Average change seen at first retest, ~4 months in. Individual responses vary; your own retest measures your markers, before and after.

You don't win HYROX by guessing. So why guess with your supplements?
Tim Wenisch · 2025 HYROX World Champion

Tim & Alexander hold the Men's Pro Doubles World Record: 47:40, London 2026.

Tim Wenisch Tim Wenisch 2025 HYROX World Champion · Single & Doubles Champion

Read your gut, and your second month's on us.

Claim your free month

The science board

Who signs off your formula.

Real people with verifiable credentials. Every formula is approved by a scientist before it goes into production.

Meet the full science board →
Dr. Polina Novikova
Chief Scientific Officer

Dr. Polina Novikova

Chief Scientific Officer · PhD Bioinformatics, University of Luxembourg

Polina leads the science behind NB1’s personalised supplementation product, from microbiome analysis and metabolic modelling to the algorithm that maps individual gut data into a precise, clinically grounded protocol.

She holds a PhD in Bioinformatics from the University of Luxembourg (2020–2024) and an MS in Integrated Systems Biology. Her doctoral research built computational workflows using graphs, time-series models, and deep learning to identify patterns in gut microbiome and multi-omics data.

A supplement should be a readout of your biology, not a guess at the average. Our job is to turn what your gut is actually doing into a protocol that’s precise enough to trust.
Prof. Dr. Dirk Haller
Science board

Prof. Dr. Dirk Haller

Full Professor, Nutrition & Immunology · ZIEL Institute Director · Technical University of Munich

Prof. Haller holds the Chair of Nutrition and Immunology at TU Munich and directs the ZIEL Institute for Food & Health. His research focuses on how the gut microbiome influences chronic disease susceptibility and how diet shapes microbial communities at the molecular level.

He has been recognised with the distinguished €100,000 United European Gastroenterology Research Prize.

The gut microbiome sits upstream of so much of our long-term health. The science is finally precise enough to act on the individual, not the population, and that’s exactly where NB1 is working.
Prof. Dr. Koen Venema
Science board

Prof. Dr. Koen Venema

Microbiome Expert · Wageningen University & Research · Beneficial Microbes Consultancy

Prof. Venema is one of Europe’s most cited microbiome researchers, with 25 years of experience and 254 publications with more than 17,000 citations. Founder and CEO of Beneficial Microbes Consultancy, and editor-in-chief of the journal Beneficial Microbes.

After twenty-five years studying these microbes, what convinces me is rigour: sequencing depth, reproducibility, and honest interpretation. That’s the standard I hold NB1’s science to.

  • EU laboratories

    Analysed in certified European labs.

  • Shotgun sequencing

    Species-level metagenomic resolution, not a basic 16S test.

  • Human sign-off

    Every formula reviewed by our science team before production.

When you're ready

Stop guessing. Read your gut.

The free month is your second, on 4 and 12-month plans. The formula is the real thing: built from your own reading, recalibrated every cycle. Two plans, one difference.

Core

We read your gut, and build your formula from it.

£94 /mo

or £99/mo month-to-month · cancel anytime

4 months is the minimum cycle, biology takes that long to shift.

What's inside
  • Your gut, read at species level
  • A formula built from your data
  • Three components, posted monthly
  • Presorted, travel-ready packaging
  • Recalibrate on demand
Start with Core
Most informed

Advanced

Gut and blood. Your formula rebuilds every cycle.

£144 /mo

4 months is the minimum cycle, biology takes that long to shift.

Everything in Core, plus
  • Blood biomarkers, alternating with gut
  • Formula rebuilds from every analysis
  • 125+ ingredient library, on request
  • Priority support from the team
Start with Advanced
Compare side by side Hide full comparison
Core £94 /mo Advanced £144 /mo
Analysis
Gut microbiome sequencing, shotgun, species-level ✓ ✓
Summary analysis report ✓ ✓
Full data output + deeper interpretation — ✓
Blood biomarker panel — ✓
Alternating gut + blood cycles, from cycle 2 — ✓
Gut retests On demand Every other cycle
Your formula
Three-part personalised formula ✓ ✓
Presorted, travel-ready packaging ✓ ✓
Formula rebuilds every cycle — ✓
125+ add-on ingredients — ✓
Priority support — ✓
Commitment & billing
Subscription terms 4-month min or £99/mo monthly 4-month min
Charged on production, never before ✓ ✓
Start with Core Start with Advanced

Your second month is on us.

Join the HYROX list and we'll unlock your second month on us, on a 4 or 12-month plan. We'll email you how to start when you're ready.

We'll email you how to claim it. Unsubscribe anytime.

4 and 12-month plans only. The code cannot be used on the 1-month rolling plan.

You're in. You're on the list. Use code HYROXNB1 at checkout on a 4 or 12-month plan, and your second month's on us.
Choose your plan