An at-home stool DNA sequencing analysis that maps your gut microbiome composition and function, and delivers personalised insights on digestion, immunity, mood and metabolism, with actionable recommendations from our clinical team.
2 – 3 weeks
Stool sample
Shotgun Metagenomic NGS
Order your kit
Free UK delivery in 2–3 working days. Discreet packaging.
Collect at home
A small stool sample using the sterile kit, with step-by-step instructions.
Lab analysis
Shotgun metagenomic sequencing in our accredited lab. Results in 2–3 weeks.
Report + Consultation
Personalised report in the Phenome app, plus a 1-to-1 nutritionist session.
Mikrobiomtestkit
Vårt tarmmikrobiomtest för hemmabruk kräver endast ett enkelt avföringsprov. Med hjälp av avancerad metagenomisk sekvensering identifierar vi både nyttiga och skadliga bakterier i din tarm och ger vetenskapligt baserade, personliga rekommendationer som hjälper till att återställa balansen, förbättra matsmältningen och stödja den allmänna hälsan.
Tester för hela bakterieekosystemet
Resultat inom 3–4 veckor
Återvinningsbar förpackning
Passar bra ihop med
Tarmmikrobiomtest
• Improve digestion and energy
• Understand how your gut affects mood
• Get science-backed insights and nutrition tips
• Bloating, IBS symptoms, post-meal discomfort
• Breakouts, eczema, skin inflammation
• Fatigue, brain fog, persistently low energy
• Frequent illness or low immunity
• Optimise diet, supplements and probiotics
• Enhance recovery and nutrient absorption
• Improve performance through gut optimisation
• Prevent chronic conditions before they develop
• Family history of metabolic or autoimmune disorders
• Proactive, data-driven health management
Microbial dysbiosis can show up in surprising places, across the digestive system, skin, immunity, mood and energy. If any of these feel familiar, testing can help you understand why.
IBS & constipation
Food intolerances
Bloating & indigestion
Acne & eczema
Fatigue & brain fog
Anxiety & mood imbalances
Weight fluctuations
Low immunity & inflammation
Your Gut Microbiome Test Report provides a detailed analysis of your gut bacteria, diversity, and metabolic performance. It translates scientific data into clear insights that reveal how your gut health affects digestion, immunity, and energy. Each section of your report can be expanded for a full explanation of your results.
An overview of your gut microbiome diversity, stability and health score, with a visual comparison to optimal reference ranges.
A detailed breakdown of the dominant bacterial species in your gut, showing which are beneficial and which may contribute to imbalance.
Identification of your gut type based on dominant bacterial families. This reveals how your microbiome influences metabolism and dietary response.
A numerical measure of imbalance in your gut ecosystem, how far your microbiome has shifted from equilibrium and what this means for you.
A full list of bacterial species found in your sample with their known roles in digestion, immunity and metabolism.
An overview of your microbiome’s ability to process carbohydrates, fats and proteins and produce short-chain fatty acids that nourish your gut lining.
Analysis of how your bacteria contribute to vitamin production such as B12, K and folate, and how efficiently they process key nutrients.
Evaluation of how your gut microbes interact with your immune system to regulate inflammation and protect against pathogens.
Insights into how the state of your gut affects skin health and the link between microbial imbalance and conditions such as acne or eczema.
Analysis of bacteria linked to inflammation control and immune overactivity, helping you identify early signs of imbalance.
Assessment of microbial activity related to gut barrier integrity and permeability that can influence systemic inflammation.
Evaluation of microbial markers associated with IBS, showing patterns linked to discomfort, bloating and irregular digestion.
Detection of bacterial profiles associated with overgrowth in the small intestine that may cause bloating, gas and nutrient absorption issues.
Exploration of microbial pathways involved in gluten metabolism, identifying patterns that may indicate sensitivity or intolerance.
Analysis of bacteria influencing metabolism, energy extraction and fat regulation to understand how your gut may affect weight control.
Targeted lifestyle and nutrition guidance based on your microbiome profile, practical steps to restore balance and maintain long-term gut health.
Full results in the Phenome app
All 16 report sections visualised clearly. Plain-language explanations for every finding, designed for people, not researchers.
Personalised diet & supplement guidance
After your results are ready, you’ll be connected with a Phenome nutritionist for a 1-to-1 session to go over your findings and build a plan around your microbiome.
Bacteria dictionary
Every significant species detected in your sample explained: its role in your gut, whether it’s protective or harmful, and what your levels mean for your health.
Complete data privacy
Your microbiome data is processed under GDPR, stored on encrypted servers, and never shared with any third party. You remain in full control.
"I honestly did this out of curiosity, but the results were shocking. I could finally see why I kept having random breakouts and sugar cravings. It’s strange how much your gut controls without you knowing. I’ve started taking care of it differently since."
— Michael T, 41Gut Microbiome Test
"I honestly did this out of curiosity, but the results were shocking. I could finally see why I kept having random breakouts and sugar cravings. It’s strange how much your gut controls without you knowing. I’ve started taking care of it differently since."
— Michael T, 41Gut Microbiome Test
"I always thought feeling heavy after meals was just normal for me. Turns out, my gut wasn’t in great shape. After seeing what was really going on, I started paying attention to what actually works for my body. I feel more in tune now, and my stomach finally feels calm again."
— Sara L, 36Gut Microbiome Test
The gut microbiome is one of the fastest-moving areas of biomedical science. Our analysis is built on peer-reviewed evidence across digestion, immunity and systemic health, reviewed by a clinician on our team, with methods, references and confidence intervals shipped in every report.
Peer-reviewed methodology
Cell Press, Nature, Gut
Accredited UK laboratory
ISO 15189 medical testing
Clinician-reviewed reports
1-to-1 nutritionist included
The test analyses the composition and balance of the gut microbiome in individuals, identifying key bacterial species, diversity levels, and patterns associated with digestion, immunity, metabolism and overall wellbeing.
Your gut microbiome affects nutrient absorption, hormone balance, immune function, and even mood. Understanding its composition helps you make dietary and lifestyle changes that support long term health.
The test requires a small stool sample, which can be collected easily at home using the sterile kit provided. Detailed instructions are included for safe and hygienic collection.
Your report includes an overview of bacterial diversity, abundance, and balance, along with findings related to digestion, inflammation, and microbial composition. It also provides personalised lifestyle and dietary recommendations.
The test uses advanced shotgun metagenomic sequencing for high depth and precision. This method identifies bacteria at both the genus and species level for more accurate insights.
It is ideal for anyone over 18 who wants to learn more about their gut health. It's especially recommended if you're experiencing digestive discomfort, low energy, bloating, or irregular bowel habits.
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.
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.
Test your gut health at home with lab-grade analysis and get fast, accurate results in 2–3 weeks.
Free UK shipping
Delivered in 2–3 working days
16 health domains
Mapped from a single sample
1-to-1 consultation
Phenome nutritionist included
GDPR + encrypted
Your data, always under your control
