What Is the GI-MAP Test? A Guide to Comprehensive Stool Testing
Understand what this at-home gut health test measures, what its limits are, and how your results can support a more personalized plan.
Digestive symptoms can be frustrating, especially when you have tried diet changes, supplements, or medications without clear answers. Bloating, constipation, diarrhea, reflux, stomach pain, and food reactions can have many possible causes. Symptoms alone do not always show what is happening inside the digestive tract. A GI-MAP test can add objective information to the bigger picture.
The GI-MAP is a comprehensive stool test that looks for the DNA of selected bacteria, parasites, viruses, and fungi. It also measures several markers related to digestion, gut inflammation, and immune function. Your practitioner reviews these findings along with your health history, symptoms, diet, medications, and other testing. The goal is not to treat a lab report. The goal is to understand which findings may matter for you and use that information to build a more focused plan.
What Is the GI-MAP Test?
GI-MAP stands for Gastrointestinal Microbial Assay Plus. It is a stool analysis from Diagnostic Solutions Laboratory. You collect one stool sample at home and send it to the lab in the materials provided with your kit.
The test uses quantitative polymerase chain reaction, or qPCR. That name sounds complicated, but the basic idea is simple. The lab looks for specific pieces of genetic material from the organisms included on the panel. If a target is found, qPCR can estimate how much of that DNA is present in the sample. This allows the report to show both detection and quantity for many targets.
Older stool testing methods often depend on growing organisms in a culture or viewing them under a microscope. Those methods can still be useful, but some organisms are difficult to grow or identify that way. DNA testing can detect selected organisms without needing to grow them first.
What Does the GI-MAP Test Measure?
The GI-MAP test looks at several parts of the gut environment. In general, the test evaluates the following areas.
1. Bacterial, parasitic, and viral pathogens
Pathogens are organisms that can cause illness in some people. The panel checks for selected bacteria linked with foodborne illness or diarrhea, as well as certain parasites and viruses. Examples may include Campylobacter, Cryptosporidium, Salmonella, Giardia, Cryptosporidium, and norovirus.
A positive finding is not a diagnosis by itself. Some people can carry an organism without having symptoms. The amount detected, the organism, your symptoms, your immune health, recent travel, medications, and other factors all help determine whether the finding may be important.
2. Helicobacter pylori
Helicobacter pylori, often called H. pylori, is a bacterium that can live in the stomach. It may be linked with gastritis, ulcers, indigestion, or upper digestive symptoms, although some people have no symptoms. The GI-MAP reports H. pylori DNA and may also include certain virulence factors or resistance-related markers. These details can help a qualified clinician decide whether medical follow-up or additional testing is needed.
3. Beneficial and keystone bacteria
Your gut contains many microbes that support normal digestive and immune functions. The GI-MAP measures selected groups that are commonly used to help describe the gut community. These results can offer clues about balance, but they are not a complete map of every organism in your gut.
It is also important to know that there is no single perfect microbiome shared by everyone. Diet, age, environment, stress, medications, and bowel habits can all affect the mix of microbes found in stool.
4. Opportunistic bacteria and possible overgrowth patterns
Opportunistic microbes may live in the gut without causing a problem. They may become more important when they are present in higher amounts or when the gut environment, immune system, or protective bacteria are under strain. Your practitioner looks for patterns rather than assuming every flagged organism needs to be removed.
5. Fungi and yeast
The panel checks for selected fungi and yeast, including Candida species. A stool result can show that fungal DNA was detected, but it does not prove that yeast is the cause of symptoms in another part of the body. Findings should be compared with your symptoms and medical history.
6. Digestion, inflammation, and immune markers
The GI-MAP goes beyond microbes. It includes stool markers that can help your practitioner assess how the digestive tract is functioning. Depending on the current panel, these may include:
Pancreatic elastase-1: A marker used to assess the pancreas's production of digestive enzymes. A low value can be linked with reduced pancreatic function, but very loose or watery stool can sometimes dilute the result.
Secretory IgA: An antibody that helps form a first line of immune defense in the digestive tract. High or low results can have several possible meanings and are interpreted with the full report.
Calprotectin: A marker of inflammation in the intestines. A high result may need medical follow-up because it can rise with inflammatory bowel disease, intestinal infections, and other conditions.
Anti-gliadin IgA: A stool immune marker related to exposure and response to gliadin, a part of gluten. It is not the same as standard blood testing for celiac disease and cannot diagnose celiac disease on its own.
Eosinophil activation protein: A marker that may rise with certain allergic, immune, or inflammatory activity in the digestive tract.
Zonulin may be available as an optional add-on. If you wouldIt is used as one clue about intestinal barrier function. It should not be treated as a stand-alone diagnosis of permeability.
Who May Benefit From a GI-MAP Stool Test?
A practitioner may consider comprehensive stool testing when symptoms are ongoing, keep returning, or have not improved with general nutrition support. It may be considered for people with concerns such as:
Ongoing bloating, gas, abdominal discomfort, constipation, or diarrhea
Reflux or upper digestive discomfort
Bloating, constipation, reflux, or other digestive concerns while using GLP-1 therapy
A history that raises concern for H. pylori or a gastrointestinal infection
Digestive symptoms after travel, food poisoning, or antibiotic use
Possible problems with digestion or nutrient absorption
Known digestive conditions that require closer monitoring with a medical provider
Skin, immune, energy, or other concerns that may occur along with digestive symptoms
The test is not right for everyone. It is also not a replacement for a colonoscopy, endoscopy, blood work, imaging, a SIBO breath test, or urgent medical evaluation when those are needed. For example, GI-MAP does not diagnose small intestinal bacterial overgrowth. It analyzes stool, which mainly reflects the lower digestive tract. If SIBO is suspected, your practitioner may recommend breath testing or a medical evaluation instead.
GI Testing Before, During, and After GLP-1 Treatment
GI testing may be helpful before starting a GLP-1 medication, especially for people who already have digestive concerns. It may also help guide support if symptoms develop or continue during treatment. The GI-MAP looks at digestion, inflammation, and key gut bacteria, including Akkermansia. Healthy gut bacteria also produce short-chain fatty acids, or SCFAs, which help support the body’s natural GLP-1 production. Understanding these patterns can guide nutrition and gut support during GLP-1 use and after treatment ends.
Why Test Instead of Guessing?
Many digestive symptoms overlap. Bloating can occur with constipation, food intolerance, changes in motility, SIBO, stress, or an infection. Diarrhea can have many causes too. Choosing supplements only from a symptom list may lead to a plan that is too broad, too aggressive, or not focused on the most important issue.
A GI-MAP test can help narrow the questions. Is there a pathogen that needs attention? Is H. pylori present? Are there signs of intestinal inflammation? Does pancreatic elastase suggest that digestion needs a closer look? Are there patterns in the selected microbes that fit the person's history? The answers can help guide the next step, but they still need professional interpretation.
What the GI-MAP Test Cannot Tell You
Comprehensive does not mean complete. No stool test can explain every symptom or capture every microbe in the digestive tract. The microbiome also changes over time. Diet, stress, bowel patterns, illness, travel, and antimicrobial medications can affect what is found in a sample.
The report should not be used to label every high or low marker as a disease. It also should not be used to start antibiotics, antifungals, or large supplement protocols without clinical guidance. Some findings may call for confirmation through a standard medical test or referral to a physician. Red-flag symptoms such as blood in the stool, black stool, severe or worsening pain, persistent vomiting, unexplained weight loss, fever, dehydration, or anemia need prompt medical care.
How the At-Home GI-MAP Test Works
1. Order the test: After you purchase the assessment and complete the required forms, Renewed Roots Nutrition can place the test order.
2. Receive your kit: The collection kit is shipped to you and includes the vial, collection materials, instructions, specimen bag, and return shipping materials.
3. Collect one stool sample: Follow the kit directions carefully. The sample should not mix with urine or toilet water. Place the required amount into the provided vial and close it tightly.
4. Package and ship it: Label the vial and include all required forms. Follow the current instructions in your kit for storage and shipping. If you cannot ship the same day, the lab's current instructions say to refrigerate the sample, not freeze it, and ship it as soon as possible.
5. Review your results: Current lab turnaround is often about 10 business days after the lab receives the sample, although timing can vary. Renewed Roots Nutrition will contact you when the results are ready so you can schedule your included 30-minute virtual results consultation.
How Your Results Are Used
During your results consultation, the report is translated into plain language. The most important findings are reviewed first, along with how they may connect with your symptoms and history. Recommendations may include nutrition, lifestyle, supplements, medical follow-up, or additional testing. Not every out-of-range marker needs direct treatment.
A thoughtful plan also considers what is realistic for you. The goal is to create clear priorities rather than hand you a long list of restrictions and products. When follow-up testing is useful, the timing depends on the original findings, the care plan, and whether symptoms have changed.
Frequently Asked Questions About the GI-MAP Test
Is the GI-MAP test painful?
No. It is a noninvasive stool test completed at home. There are no needles or office procedures.
Do I need to stop medications or supplements?
Do not stop a prescription medication on your own. Preparation can depend on the purpose of testing and what you take. Follow the directions included with your kit and reach out to Renewed Roots Nutrition if you have any questions.
Can I collect during my period?
It is usually best to avoid getting menstrual blood in the sample. If collection timing is difficult or you have ongoing rectal bleeding, ask your practitioner or the laboratory for guidance before collecting.
Does a positive result mean I have an infection?
Not always. The test detects microbial DNA. Your symptoms, the amount detected, the type of organism, and other health information help determine whether a finding is clinically important.
Can the GI-MAP diagnose IBS, IBD, or celiac disease?
No. It may provide useful supporting information, but these conditions require evaluation using accepted medical criteria. High calprotectin, blood in the stool, or other concerning findings may lead to referral or additional testing.
Is the GI-MAP Test Worth It?
The GI-MAP may be useful when there is a clear clinical question and the results will change what you do next. Its value comes from more than the number of markers on the page. The test is most helpful when it is paired with a careful health history and professional interpretation.
If you have been dealing with ongoing digestive symptoms and want a closer look at your gut health, comprehensive stool testing may be one option to discuss. Renewed Roots Nutrition offers a GI-MAP assessment that includes the at-home test kit, professional review of your results, an included 30-minute virtual results consultation, and personalized nutrition, lifestyle, and supplement recommendations.