The GI-MAP (Gastrointestinal Microbial Assay Plus) is a comprehensive stool DNA test created by Diagnostic Solutions Laboratory. It uses advanced qPCR technology to measure microorganisms and digestive markers with high sensitivity and accuracy.
Unlike older stool tests that rely on culturing organisms, the GI-MAP looks directly at microbial DNA, giving a detailed snapshot of what’s happening in your gut.
What the GI-MAP Measures
The test evaluates a wide range of markers that affect digestion, immunity, inflammation, metabolism, and overall health.
1. Pathogenic (Harmful) Organisms
- Parasites
- Viruses
- Pathogenic bacteria (e.g., C. difficile, E. coli, Salmonella)
- H. pylori (including virulence factors)
2. Beneficial & Opportunistic Bacteria
- Levels of healthy gut flora
- Overgrowths or imbalances (dysbiosis)
3. Yeast & Fungi
- Candida species
- Other fungal organisms that may contribute to bloating, fatigue, and digestive symptoms
4. Digestive Function
Key markers that show how well your digestive system is working:
- Pancreatic elastase (enzyme output)
- Steatocrit (fat absorption)
- Occult blood (hidden bleeding)
5. Gut Inflammation
- Calprotectin (intestinal inflammation)
- Eosinophilic protein X (EPX)
- Immune response indicators
6. Immune Function
- Secretory IgA (sIgA) — your gut’s main immune defense
- Helps assess chronic stress, infections, and barrier integrity
7. Intestinal Permeability Indicators
While not a direct “leaky gut” test, certain patterns suggest compromised barrier function:
- Low sIgA
- High zonulin
What the Test Can Help With
- Chronic bloating, gas, constipation, or diarrhea
- Reflux or abdominal pain
- Suspected SIBO, dysbiosis, or yeast overgrowth
- Autoimmune issues
- Skin conditions (eczema, acne, psoriasis)
- Chronic fatigue or brain fog
- Weight loss resistance
- After travel or food poisoning
- Recurrent infections or antibiotic history
It’s commonly used in functional and integrative medicine because it gives actionable, targeted information.
How the Test Works
- You receive a home test kit.
All samples are collected privately at home and mailed to the lab. - You provide a small stool sample.
Instructions will be provided inside the kit. They are simple and clear. - The lab analyzes microbial DNA and functional markers.
- Results are reviewed with a practitioner who creates a personalized protocol, which may include:
- Antimicrobial or antibacterial herbs
- Probiotics
- Digestive enzymes
- Dietary changes
- Gut-healing nutrients
- Lifestyle recommendations
Why People Choose the GI-MAP
- Highly advanced qPCR DNA technology
- Clear, easy-to-read report
- Detects infections, imbalances, and functional problems
- Useful for chronic, unexplained digestive or systemic symptoms
- Helps guide precise, personalized treatment plans
