Gut Microbiome Test Report – How to Read, Interpret & Understand Your Results
Time to read 9 min
Time to read 9 min
Table of contents
The gut microbiome is associated with the overall health and well-being of an individual. A gut microbiome test measures bacterial composition and offers comprehensive insights into the microorganisms living inside your gut. The testing involves stool sample analysis using DNA sequencing. The microbiome test report involves information about the gut microbial ecosystem.
A gut microbiome test detects tiny living organisms, particularly bacteria that live inside your gastrointestinal tract. It checks for the species and their amount to understand the balance, as an imbalance can cause various health concerns. The testing offers a detailed picture of the ecosystem found in your gut.
Let's understand why the gut microbiome test report matters for various bodily functions:
Digestion: It reflects the balance of good and bad bacteria, as enough good bacteria are essential for the proper breakdown of food.
Immunity: A healthy balance of gut flora allows your immune system to combat infections efficiently. Gut flora imbalance can make you vulnerable to getting sick.
Metabolism: Gut microbiota is responsible for how well your body utilizes energy and fat storage. Imbalances influence nutrient absorption and body weight.
Gut Symptoms: The report can tell you why you are experiencing persistent bloating, stomach upset, cramps, or inflammatory bowel disease by reflecting the balance of good and bad bacteria (gut microbes).
Here are the commonly performed microbiome tests:
16S rRNA Sequencing: It checks the DNA of bacteria living in your gastrointestinal tract to identify their types. Suitable for detecting the bacterial species, but doesn’t tell about their functional potential.
Shotgun Sequencing: It analyses all the DNA(bacteria, fungi, and viruses) found in the sample. Suitable for detecting the types of microbes and their functions.
Stool Analysis: It checks the stool sample for harmful bacteria and inflammation to assess the digestive health. Suitable for gut health review along with microbiome composition.
Here’s what the gut microbiome test result reports show:
It involves alpha diversity and beta diversity. It tells about the bacteria (Lactobacillus, Bifidobacterium) living in your gut and their amounts. It reflects the microbiota balance in your gut.
Usually, high microbial diversity is associated with better digestion, efficient immunity, and overall digestive health. Low diversity is associated with improper digestion and microbiome imbalance or dysbiosis.
Checks for the balance of the beneficial (Lactobacillus and Bifidobacterium) and harmful bacteria (pathogenic bacteria). Beneficial bacteria support healthy digestion, strong immunity, and proper metabolism. Harmful or overgrown bacteria cause inflammation, bloating, diarrhea, and constipation.
It checks for dysbiosis index and inflammation markers. These markers inform about the existence and acuteness of inflammation and the veracity of intestinal living.
It checks for digestive function indicators, including protein-digesting bacteria, fiber-fermenting bacteria, and short-chain fatty acid production.
It looks for vitamin-producing bacteria, fat metabolism ability, and carbohydrate fermentation ability of your gut. For instance, Prevotella and Bacteroides are responsible for the digestion of complex carbohydrates. Bifidobacterium and Lactobacillus are responsible for fiber fermentation into helpful short-chain fatty acids.
The report connects the gut ecosystem findings to various health aspects. For instance, digestive health, immune function, mental and metabolic health.
Here’s a simple example format of a Gut Microbiome Test Report to demonstrate how it typically looks:
Example Table of Bacterial Composition
Bacteria |
Relative Abundance |
Explanation |
Bifidobacterium longum |
12% |
Supports better digestion and immunity |
Lactobacillus acidophilus |
8% |
Help with fiber fermentation |
Escherichia coli |
2% |
Overgrowth can be dangerous |
Clostridium difficile |
0.1% |
Not to worry about |
Prevotella copri |
15% |
Helps with complex carb digestion |
Example Diversity School Explanation
Gut Diversity Index (GDI): 4.8/5, high diversity indicates a healthy gut microbiome.
Example Functional Insights
Function |
Level |
Explanation |
SCFA production (Fiber fermentation) |
Moderate |
Fiber-rich foods can improve |
Vitamin B12 production |
Sufficient |
Adequate bacteria in the gut |
Lactose digestion |
Low |
Possibility of mild lactose intolerance |
Fat metabolism |
Normal |
Sufficient enzymes for efficient fat digestion. |
Example Dietary and Other Recommendations
Consume more high-fiber foods (fruits and vegetables) and fermented foods (yogurt).
Consider Bifidobacterium and Lactobacillus containing probiotic supplementation.
Ensure adequate sleep, daily exercise, and stress management.
Repeat the test in case of persistent digestive problems or every 6-12 months.
Here’s how you can compare your test reports with a sample report:
Test Type: Compare the testing methods used in both reports, for example, stool analysis, shotgun sequencing, or 16S rRNA. Various testing techniques may assess the bacteria differently.
Interpretation Tips: Low levels of beneficial bacteria suggest that you need to increase the intake of fiber-rich foods and consider probiotics. High levels of harmful bacteria indicate gut flora imbalance and suggest checking your diet, infections, and stress levels.
Health Connections: Mostly, the human gut microbiome test reports associate gut bacterial patterns with digestive symptoms, immunity issues, and metabolic health.
Let's understand how to go through and interpret your gut microbiome test results:
Begin with diversity: Diversity means the various types of bacteria in your gut. Higher diversity indicates a healthier and resilient gut, while lower diversity indicates an unhealthy gut, inflammation, or dysbiosis.
Review good vs harmful bacteria: Look for the different types of bacteria along with their relative abundance. For instance, overgrown Escherichia and Clostridium difficile are considered harmful bacteria. Bifidobacterium and Lactobacillus are considered beneficial bacteria for the gut. Compare your results with reference ranges.
Look for imbalances: Most diagnostic centers mention a reference range in the reports so that you can look for high or low bacterial levels.
Link results with symptoms: Most reports associate the bacterial patterns with digestive health problems, immune function, metabolic function, mood, and mental health.
Dietary & lifestyle interpretation: Labs may recommend some dietary modifications such as fermented foods, supplementation such as prebiotics or probiotics, and lifestyle adjustments.
Here’s how you can link your test results with your health:
Bloating: Imbalanced gut bacteria that are responsible for food fermentation.
Irritable Bowel Syndrome: Imbalanced gut bacteria or dysbiosis can make the symptoms worse.
Constipation/Diarrhea: When the gut microbiota goes out of balance, it affects bowel movement.
Food Intolerances: When the body finds it difficult to digest certain foods, such as lactose or gluten.
Low Immunity: Gut flora imbalance weakens the immune system and its ability to defend.
Fatigue & Metabolism: Gut bacteria are responsible for energy production, metabolism, and nutrient absorption.
Test microbiota intestinale is the Italian name for gut microbiome test, also known as intestinal microbiota test.
Test microbiota intestinale examines the gut microorganisms. It reflects the types of existing microbes, the balance of good and bad bacteria, and how they influence digestion, metabolism, immunity, and overall health. It can help identify gut bacteria imbalances, digestive issues, and the need for probiotic supplementation or dietary and lifestyle modifications.
Gut microbiome test is an English term for a medical test, while test microbiota intestinale is an Italian term for the same test. Both tests examine the microorganisms present in your gut to analyse the gut balance. Reference ranges may vary; however, the underlying science is the same.
Digestive health
Gut bacteria balance
Nutrient absorption
Food metabolism
Personalized guidance
Clinical relevance
Here’s how you can make use of your gut microbiome test report for diet and lifestyle changes:
Foods to increase: High fiber foods (fruits, vegetables, legumes, and whole grains) and fermented foods (kimchi, kefir, and yogurt).
Foods to reduce: Sugary foods and drinks, processed and oily foods.
Probiotics and prebiotics suggestions: Probiotic or prebiotic supplementation as suggested by your healthcare provider.
Sleep: Prioritize 7-9 hours of sleep to maintain a healthy gut balance.
Stress: Practice deep breathing and meditation to manage stress.
Physical activity: Regular exercise supports healthy gut bacteria.
Let's understand when you need to consult a healthcare professional after a gut microbiome test:
If your test report shows higher levels of harmful bacteria, such as Clostridium difficile) and low diversity or lower levels of major beneficial bacteria. If it reflects the indicators of infection, malabsorption, or inflammation.
If your report shows balanced gut microbiota but you are experiencing persistent digestive problems (gas, bloating, constipation, cramps), sudden weight fluctuations, tiredness, and food sensitivities.
Before you start taking any digestive health supplement, probiotics, prebiotics, or significant dietary modifications, you need a medical evaluation. Especially if you have nutrient deficiencies, autoimmune diseases, or chronic digestive disorders, make sure you consider a proper medical evaluation.
Types of microbes living in your gut, diversity, balance of good and bad bacteria, and how gut flora affects your digestion, metabolism, immunity, and overall well-being.
Look for the types and levels of bacteria found in your gut, diversity score, and functional insights, and compare with the reference ranges.
Generally, a healthy microbiome score specifies high bacterial diversity with a healthy balance of good bacteria.
Low diversity indicates fewer bacterial types in your gut, which means an imbalanced gut. It may be associated with metabolic problems, digestive concerns, or immunity concerns.
Usually, human microbiome tests are considered accurate for detecting bacteria; however, the results and exact values may vary depending on the laboratory and methods used.
Many labs and diagnostic centers provide sample reports to help you understand the format, bacterial composition, and other facts.
Usually 1-4 weeks, depending on the test type and laboratory.
Many gut microbiome analysis test reports offer personalised dietary recommendations depending on the bacterial balance in your gut.
“Test Microbiota Intestinale” is the Italian name of the gut microbiome test. It involves analysing microorganisms in your intestines. It's different in terms of language and laboratory focus; however, scientifically, it’s the same as a gut microbiome test.
Human gut microbiota results may change every other day due to your diet, medication, stress, illness, and lifestyle habits.
***Medical Disclaimer - The following information is for educational purposes only. No information provided on this website, including text, graphics, and images, is intended as a substitute for professional medical advice. Please consult with your doctor about specific medical advice about your condition(s).