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Phenome Longevity

Gut Microbiome Test

Gut Microbiome Test

Regular price £190.00 GBP
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The most comprehensive report on your gut health.

Our at-home gut microbiome test requires only a simple stool sample. Using advanced shotgun metagenomic sequencing, we identify both beneficial and harmful bacteria in your gut and provide science-backed, personalised recommendations to help restore balance, improve digestion, and support overall health.

  • Tests for 317 bacterial species
  • Results within 3 weeks
  • Recycleable packaging
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Why Your Gut Health Deserves Attention

Your gut is your second brain.

It constantly sends and receives signals that influence your mood, focus, immune response, and metabolism. When your microbiome is balanced, your body works in sync. But when that balance is lost, the effects can show up in unexpected ways.

Imbalanced gut flora has been linked to conditions such as IBS, bloating, fatigue, acne, brain fog, depression, type 2 diabetes, and autoimmune disorders.

You will not know until you test. And once you do, everything starts to make sense.

100 Trillion+ Microbes: Small organisms. Massive impact.

1

%

of your immune system lives in your gut

1

%

of serotonin is produced in the gut

1 in 3

people show signs of microbiome imbalance

1

times

more microbial genes than human ones, shaping digestion, mood, and immunity

What Our Research Says

At Phenome Longevity, every claim we make is rooted in science.

We do not rely on trends or guesswork. Our research team actively contributes to peer-reviewed publications and uses those findings to inform every insight we share. We believe that scientific accuracy is non-negotiable, and our health recommendations are backed by published data produced by the experts behind this platform.

Figure 5A & 5B

Figure 6A & 6B

Figure 5 and 6

Why Gut Health Affects Everything

Backed by decades of research linking gut health to whole-body wellness.

Mood and Mental Health

The gut and brain are connected via the gut-brain axis. Microbes produce neurotransmitters like serotonin, dopamine, and GABA, directly influencing your mood and emotional balance.

Immunity and Inflammation

Over 70 percent of immune cells live in the gut. Microbes train these cells and regulate inflammation. When imbalanced, the microbiome can trigger chronic low-grade inflammation.

Nutrient Absorption

Gut bacteria break down fibre and starch into short-chain fatty acids like butyrate. These support the gut lining, enhance vitamin absorption, and aid bile acid metabolism.

Sleep and Stress

The microbiome influences the HPA axis, which regulates cortisol. It also supports tryptophan production, helping maintain healthy serotonin and melatonin levels for balanced mood and restful sleep.

Weight and Metabolism

Different microbes impact calorie extraction, fat storage, and appetite hormones like ghrelin and leptin. Imbalance can lead to insulin resistance and metabolic dysfunction.

Mood and Mental Health

The gut and brain are connected via the gut-brain axis. Microbes produce neurotransmitters like serotonin, dopamine, and GABA, directly influencing your mood and emotional balance.

Immunity and Inflammation

Over 70 percent of immune cells live in the gut. Microbes train these cells and regulate inflammation. When imbalanced, the microbiome can trigger chronic low-grade inflammation.

Nutrient Absorption

Gut bacteria break down fibre and starch into short-chain fatty acids like butyrate. These support the gut lining, enhance vitamin absorption, and aid bile acid metabolism.

Sleep and Stress

The microbiome influences the HPA axis, which regulates cortisol. It also supports tryptophan production, helping maintain healthy serotonin and melatonin levels for balanced mood and restful sleep.

Weight and Metabolism

Different microbes impact calorie extraction, fat storage, and appetite hormones like ghrelin and leptin. Imbalance can lead to insulin resistance and metabolic dysfunction.

Mood and Mental Health

The gut and brain are connected via the gut-brain axis. Microbes produce neurotransmitters like serotonin, dopamine, and GABA, directly influencing your mood and emotional balance.

Immunity and Inflammation

Over 70 percent of immune cells live in the gut. Microbes train these cells and regulate inflammation. When imbalanced, the microbiome can trigger chronic low-grade inflammation.

Nutrient Absorption

Gut bacteria break down fibre and starch into short-chain fatty acids like butyrate. These support the gut lining, enhance vitamin absorption, and aid bile acid metabolism.

Sleep and Stress

The microbiome influences the HPA axis, which regulates cortisol. It also supports tryptophan production, helping maintain healthy serotonin and melatonin levels for balanced mood and restful sleep.

Weight and Metabolism

Different microbes impact calorie extraction, fat storage, and appetite hormones like ghrelin and leptin. Imbalance can lead to insulin resistance and metabolic dysfunction.

Learn more

what do we analyse

Scope of Analysis: Gut Health Testing

Core Microbiome Composition

Top Bacterial Phyla: Firmicutes, Bacteroidetes, Actinobacteria, Proteobacteria, Verrucomicrobia

Balance Overview: Compares your microbiome to reference ranges to determine increases or decreases in key groups.

Microbiome Health Metrics

Richness: Number of different species in your gut — higher richness indicates a more resilient microbiome.

Diversity: A diverse range of bacteria supports better digestion, immune function, and metabolic stability.

Evenness: Indicates whether bacterial populations are balanced or dominated by certain strains.

Firmicutes/Bacteroidetes (F/B) Ratio: A common marker for metabolic health; linked to weight regulation and digestion.

Functional Bacteria Analysis

Butyrate-Producing Bacteria: These support gut lining integrity, reduce inflammation, and may protect against colon cancer.
Includes Faecalibacterium prausnitzii, Roseburia, Eubacterium rectale, etc.

Probiotic & Beneficial Bacteria

Evaluation of key probiotic strains such as Lactobacillus (e.g. acidophilus, rhamnosus) and Bifidobacterium (e.g. longum, bifidum), with reporting on their roles in digestion, immune support, and gut-brain axis functions related to mental well-being.

Pathogenic & Opportunistic Microorganisms

Evaluation of pathogenic and opportunistic microorganisms, including:

Bacteria such as Clostridium difficile, Helicobacter pylori, Salmonella, Shigella, toxic strains of E. coli, and Campylobacter jejuni
Fungi such as Candida albicans
Protozoa including Giardia lamblia, Entamoeba histolytica, and Cryptosporidium spp.
Viruses such as Norovirus and Rotavirus with reporting on their potential to disrupt gut health or contribute to infection and inflammation.

Microbiome-Disease Associations

Analysis of correlations between gut microbiota composition and a spectrum of clinically relevant conditions, including:
Gastrointestinal disorders such as IBS, IBD, Crohn’s disease, and Ulcerative Colitis
Metabolic syndromes including obesity, type 1 and 2 diabetes, and nonalcoholic fatty liver disease (NAFLD).
Autoimmune conditions such as Hashimoto’s thyroiditis and systemic lupus erythematosus.
Cardiovascular risk factors including hypercholesterolemia and hypertension.
Neuropsychiatric and neurodegenerative disorders including anxiety, depression, and Alzheimer’s disease.
Dietary intolerances such as gluten and lactose sensitivity.

with detailed reporting on microbial signatures associated with increased or decreased risk profiles.

Personalised Recommendations

Includes tailored advice for:
-Diet: Fibre-rich foods, probiotics, prebiotics.
-Lifestyle: Sleep, stress management, physical activity.
-Supplements: Where relevant, based on microbial deficiencies​.

This test is ideal for

Anyone experiencing bloating, irregular digestion or food sensitivities.

Individuals looking to optimise gut health and overall wellness.

Those with a history of digestive issues, IBS, or inflammatory conditions.

People interested in personalised nutrition and microbiome insights.

What's included in your gut health report?

Overview Summary

A high-level snapshot of your gut health status based on key metrics.

A high-level snapshot of your gut health status based on key metrics.

Microbial Composition

Measures how varied your gut bacteria are — a key marker of gut health.

Measures how varied your gut bacteria are — a key marker of gut health.

Enterotype

Identifies the dominant bacterial community in your gut and its impact on digestion.

Identifies the dominant bacterial community in your gut and its impact on digestion.

Dysbiosis Index

Assesses the balance between beneficial and potentially harmful bacteria.

Assesses the balance between beneficial and potentially harmful bacteria.

Complete List of Bacteria

A comprehensive breakdown of all bacteria detected, by type and abundance.

A comprehensive breakdown of all bacteria detected, by type and abundance.

Metabolic Potential

Assesses how your microbiome may support energy production and metabolic health.

Assesses how your microbiome may support energy production and metabolic health.

Nutrient Biosynthesis & Breakdown

Evaluates the microbiome’s ability to produce or process key vitamins and compounds.

Evaluates the microbiome’s ability to produce or process key vitamins and compounds.

Gut-Immune Axis

Looks at how your microbiome may be interacting with and influencing your immune system.

Looks at how your microbiome may be interacting with and influencing your immune system.

Gut-Skin Axis

Explores the relationship between your gut health and skin condition potential.

Explores the relationship between your gut health and skin condition potential.

Inflammatory Potential

Estimates how likely your microbiome is to contribute to inflammation.

Estimates how likely your microbiome is to contribute to inflammation.

Leaky Gut Syndrome

Assesses microbial indicators linked to impaired intestinal barrier function.

Assesses microbial indicators linked to impaired intestinal barrier function.

Irritable Bowel Syndrome (IBS)

Screens for bacterial profiles associated with IBS-like symptoms.

Screens for bacterial profiles associated with IBS-like symptoms.

Small Intestinal Bacterial Overgrowth (SIBO)

Evaluates microbial patterns linked to excessive bacteria in the small intestine.

Evaluates microbial patterns linked to excessive bacteria in the small intestine.

Gluten Sensitivity

Identifies bacteria linked to gluten metabolism and potential sensitivity.

Identifies bacteria linked to gluten metabolism and potential sensitivity.

Weight Management

Reviews bacterial associations with metabolism, weight gain, and body composition.

Reviews bacterial associations with metabolism, weight gain, and body composition.

Personalised Recommendations

Tailored suggestions for diet, supplements, and lifestyle adjustments based on your results.

Tailored suggestions for diet, supplements, and lifestyle adjustments based on your results.

How it works: steps after purchasing

STEP 1

Activate Your Kit

Visit www.phenomeportal.org/activate and enter the unique Kit ID found inside your box. This step links your sample to your account.

STEP 2

Collect Your Stool Sample

Follow the simple instructions in the leaflet to collect your sample at home. The process is safe, quick, and noninvasive.

Step 3

Return Your Sample

Seal your sample in the box, place it into the sponge holder, and return it inside the original box using the prepaid return envelope. Please post on a Monday or Tuesday to avoid delays.

STEP 4

Get Your Results In The App

Once your sample is processed, you’ll receive a notification. Log into the Phenome Longevity app to access your results, microbiome analysis, and personalised insights.

How We Keep Your Data Safe

Your microbiome data is treated with the same care as your medical records. From the moment your sample is received, all personal and biological information is stored securely and processed in full accordance with the EU General Data Protection Regulation (GDPR).

We use encrypted systems, anonymised identifiers, and strict internal protocols to ensure your data is never shared or sold and only used to generate your personalised report.

You are always in control and your data remains yours.

Gut Health Test FAQs

What is the Phenome Longevity Gut Microbiome Test?

Our Gut Microbiome Test is an at-home kit that analyses your gut bacteria to provide personalised insights into your digestion, immunity, and overall health. By understanding your Microbiome, you can make better choices about your diet, supplements, and lifestyle. 

How does the test work?

  1. Order your kit online and receive it at your doorstep.
  2. Collect a small stool sample using your easy-to-use kit.
  3. Send your sample back to our certified lab following the detailed instructions.
  4. Receive your detailed gut health report within 2 weeks.

Who should take this test?

This test is perfect for anyone looking to optimize their gut health, including:

  • Individuals experiencing digestive issues (bloating, irregularity, discomfort)
  • Those interested in improving energy levels, metabolism, and immunity.
  • Anyone curious about their microbiome and its impact on overall health.
  • People looking for personalized nutrition and supplement recommendations.

What are the benefits?

• Identify bacterial imbalances that may be driving symptoms or health risks

• Understand how your gut health influences your immune system, energy, metabolism, and more

• Receive personalized, science-backed insights and recommendations to restore gut balance

• Track progress over time with follow-up testing and lifestyle guidance

• Take control of your health with data-driven decisions

Is there an age limit for the gut microbiome test kit?

Yes, you must be over 18 to purchase our gut microbiome test.

What kind of sample do I need to provide for the gut health test?

You'll need to collect a stool sample and send it to our lab using the prepaid return envelope for analysis.

When should I take and send my sample?

Please collect your sample between Monday and Thursday (Royal Mail). Be sure to return it on the same day using the prepaid return envelope, ideally before midday. Avoid collecting your sample on or near public holidays to prevent delays.

Where can I see my results?

Your results will be automatically uploaded to your secure profile on our app, created using the email address you provided at checkout. You’ll also receive an email notification with a direct link to view your results. Through the app, you can explore your full report and even download it as a PDF whenever you like.

How long does it take to get my results?