2KG Weight of the invisible organ
38 trillion microbial cells
150× More genes
Your second genome
2KG Weight of the invisible organ
38 trillion microbial cells
150× More genes
Your second genome
2KG Weight of the invisible organ
38 trillion microbial cells
150× More genes
Your second genome
2KG Weight of the invisible organ
38 trillion microbial cells
150× More genes
Your second genome
2KG Weight of the invisible organ
38 trillion microbial cells
150× More genes
Your second genome
2KG Weight of the invisible organ
38 trillion microbial cells
150× More genes
Your second genome
Understanding the Microbiome

What is the microbiome?

The microbiome is the sum of the tens of trillions of bacteria, archaea, fungi and viruses that inhabit your gut. Together they weigh almost as much as an organ and carry 150 times more genes than your own body — which is why it is known as the “invisible organ” inside you and your “second genome.”

This ecosystem is no bystander: every day it takes part in your digestion, metabolism, blood-sugar control and immune balance, and even shapes your mood and sleep through the “gut–brain axis.” When the microbial community falls out of balance, the problems rarely stay in the gut.

MICROBIOME × HEALTH

Five Key Areas of Health Shaped by Your Microbiome

Metabolism & Blood Sugar

The gut microbiome can account for roughly 30% of the variation in blood sugar and metabolism, making it a key driver behind weight and glucose management.

Gut Barrier

A healthy microbiome maintains the gut mucosal barrier; studies show it can reduce endotoxin leakage (endotoxemia) by about 34%, cutting off a source of chronic inflammation.

Immunity & Inflammation

About 70% of immune cells reside in the gut. The microbiome is a central regulator of immune balance and systemic inflammation, and is closely correlated with multi-omics immune signatures.

Gut–Brain Axis

The microbiome influences mood and cognition through the gut–brain axis. Specific species (such as Coprococcus and Dialister) are closely linked to anxiety and depression and take part in serotonin synthesis.

Aging & Longevity

Microbial diversity is a marker of healthy aging. Research shows that gut microbiome signatures can predict survival over the coming years, making them an important biomarker of longevity.

WHAT YOU CAN CHANGE

Nature vs. Nurture: What Can You Change?

Innate factors (unchangeable): Your genes, mode of birth, breastfeeding history, age and geographic environment set the baseline of your microbiome.

Acquired factors (where we can act): Diet, exercise, sleep and stress, together with precision supplementation, are the real levers that can rewrite your microbiome. Research indicates that acquired factors account for as much as 70% of the influence on your microbiome.

nubu’s precision-health pathway: Test ➜ Interpret ➜ Personalized Plan ➜ Precision Supplementation.

WHO SHOULD TEST

Who Needs Microbiome Testing Most?

If you belong to any of the following groups, microbiome testing can help you see the root cause of imbalance clearly:

• Chronic digestive discomfort (bloating, constipation, diarrhea, IBS)
• Metabolic and weight-management needs
• Low immunity or allergy concerns
• Long-term high stress and poor sleep quality
• Those who value athletic performance and anti-aging

About 70% of adults have some degree of microbiome imbalance, most commonly between the ages of 35–55. We recommend retesting every 3–6 months to track your progress.

TECHNOLOGY MATTERS

Three Generations of Testing: Why Metagenomics Is the Gold Standard

Just as a Shiba Inu and a Tibetan Mastiff are both “dogs” yet worlds apart, the microbial world is the same — the probiotic E. coli Nissle and the pathogen E. coli O157:H7 differ by a hair. Only by seeing the species and its function can you supplement with precision.

Gen 1 · qPCR Quantification

Detects only a few pre-designed pathogens (e.g. C. difficile, Giardia) — fast and sensitive, but blind to the wider ecosystem and carrying no functional-gene information.

Gen 2 · 16S rRNA

A broad bacterial community survey at lower cost; but bacteria only, with resolution that usually stops at the “genus” level and function that can only be “inferred”.

Gen 3 · Shotgun Metagenomics ★

Reads all DNA directly — bacteria, archaea, fungi, viruses and parasites in one sweep — down to the species and strain level, and directly resolves function and antimicrobial-resistance genes. The field’s recognised gold standard.

Three Generations of Testing · Capability Comparison

A Direct Comparison of Three Technologies

From detection breadth to functional resolution, a point-by-point comparison of what three generations of microbiome testing technologies can truly deliver.

A Direct Comparison of Three Technologies
Capability qPCR 16S rRNA ShotgunRecommended
BacteriaLimitedTargeted SupportedBroad-spectrum SupportedBroad-spectrum
Archaea / Fungi Not supportedLimitedLimited Supported
Viruses Not supported Not supported Supported
ParasitesLimitedTargeted Not supported Supported
Species-level identificationSpecies-level IDLimitedPanel-onlyLimitedLimited Supported
Strain-level identificationStrain-level IDLimitedLimited Not supported Supported
Functional gene contentFunctional genes Not supportedLimitedInferred SupportedDirect
Antimicrobial resistance genesAMR genesLimitedTargeted Not supported Supported
Novel species discovery Not supportedLimitedLimited Supported
Cost · Interpretation complexityCost · Complexity$ · Low$$ · Medium$$$ · High

★ Shotgun metagenomic sequencing is the scientifically recognized gold standard for microbiome testing.

FROM TEST TO PRECISION

From Testing to Precision Supplementation: AH39 Pro

Once you understand your microbiome, the next step is precision supplementation. nubu AH39 Pro uses pasteurized Akkermansia muciniphila (AKK), whose Amuc_1100 protein and P9 peptide naturally promote GLP-1, repair the gut barrier, and improve metabolism and blood sugar.

Proven in a 12-week double-blind RCT: weight −2.27kg, body fat −1.37kg, hip circumference −2.63cm, and reduced LDL cholesterol. No injections — just one capsule a day.

Contact Us

Still have questions?

Leave your question and our team will get back to you as soon as possible.

Microbiome FAQs

What is the microbiome?

The microbiome is the sum of the tens of trillions of bacteria, archaea, fungi and viruses living in your gut. It weighs about 2 kilograms and carries 150 times more genes than your own body. It is deeply involved in digestion, metabolism, immunity and mood regulation, which is why it is known as the “invisible organ” inside you.

What can microbiome testing tell me?

Using Metagenomic Sequencing, the test resolves your microbiome down to the species and functional level, revealing your microbial diversity, the balance of key beneficial and pathogenic bacteria, and your metabolic and inflammatory risk. Based on this, it provides personalized dietary and precision-supplementation recommendations.

Are pasteurized (non-live) probiotics safe and effective?

Yes — and they offer distinct advantages. A 2019 study in Nature Medicine confirmed that pasteurized Akkermansia outperforms live bacteria in improving metabolic markers. It is also stable at room temperature for up to 24 months with no risk of infection, making it more suitable for pregnant women, children and immunocompromised individuals.

How is AH39 different from ordinary probiotics?

Most ordinary probiotics use live bacteria, rely on a single strain, and lack clinical data to back their results. AH39 Pro uses pasteurized AKK rich in the core Amuc_1100 protein, combined with L. plantarum and L. rhamnosus to form a triple-synergy formula, with weight and metabolic improvements validated in a 12-week double-blind RCT.

Who is it suitable for, and how soon will I see results?

It is suitable for adults with needs around weight, blood sugar, gut barrier or immune balance. We recommend taking it on an empty stomach before breakfast with warm water — 1 capsule a day for everyday maintenance, or 2 capsules a day for weight management. Expected timeline: weeks 1–4 gut adaptation, weeks 4–8 metabolic activation, and significant improvement from weeks 8–12 onward.

What types of microbiome tests are there, and why is metagenomic sequencing the most comprehensive?

There are three generations of technology in common use: qPCR can only detect a handful of preset pathogens; 16S rRNA sees bacteria alone and resolves only to the "genus" level; while third-generation metagenomics (Shotgun) reads bacteria, archaea, fungi, viruses and parasites in a single pass — down to the species and strain level — and directly decodes functional and antibiotic-resistance genes, the gold standard recognized across the scientific community.

How often should you test your microbiome?

We generally recommend retesting every 3–6 months. Your microbiome shifts dynamically with diet, stress, and medication, so regular tracking lets you see how it's trending after each adjustment — keeping your precision-health plan continuously fine-tuned.

WHY TRUST NUBU

A Precision-Health Partner You Can Trust

AI-Driven, Built for Hong Kong

nubu combines cutting-edge artificial intelligence with a database built specifically for Hong Kong people, turning your health data into precise, actionable and personalized recommendations.

Backed by Doctors and Science

Developed together with locally practicing Hong Kong doctors and biologists, every plan is grounded in clinical evidence you can trust.

From Testing to Supplementation, All in One

From microbiome testing and AI interpretation to precision supplementation, nubu offers a complete precision-health loop, supporting you every step of the way.