The GI-MAP stool analysis is the single most informative test for gut health. DNA-based. Comprehensive. And a genuine clinical starting point — not a compromise.
The gut is where most of my clients' problems begin — and where most of them have been failed by conventional testing. Not because the gut wasn't the issue, but because the testing used was inadequate to find what was actually there.
The GI-MAP uses quantitative DNA technology to identify pathogens, parasites, bacterial imbalances, digestive markers, immune function indicators, and gut permeability — at a level of sensitivity that standard stool culture simply cannot match. It is, in my clinical experience over thirty-seven years, the single most consistently informative test available for anyone with gut symptoms, unexplained fatigue, skin conditions, hormonal issues, or mood problems that haven't resolved with conventional approaches.
The GI-MAP Entry Programme exists because I want testing to be accessible — not because I believe one test tells the whole story, but because it tells enough of the story to produce genuinely targeted interventions. And genuinely targeted interventions produce results that generic protocols do not.
This is not a basic stool test. It is a comprehensive DNA-based assessment of your entire gut ecosystem.
H. pylori with virulence factors, Blastocystis, Giardia, Cryptosporidium, Clostridioides difficile, and bacterial pathogens that standard culture regularly misses entirely.
Keystone species including Akkermansia, Faecalibacterium prausnitzii, Bifidobacterium, and Lactobacillus — with quantified levels, not just presence or absence.
Pancreatic elastase (enzyme output), steatocrit (fat absorption), and beta-glucuronidase (a marker of how gut bacteria are affecting your oestrogen clearance).
Secretory IgA — the primary antibody defending your gut lining. Critically low sIgA is one of the most common and most missed findings in chronically unwell clients.
Calprotectin, a direct marker of intestinal inflammation — elevated in active IBD, infections, and significant mucosal disruption. Often the missing piece in "unexplained" gut symptoms.
Zonulin and anti-gliadin antibodies — indicators of leaky gut, the mechanism by which gut dysfunction drives systemic inflammation, skin conditions, and autoimmune triggers.
"She'd had IBS symptoms for eleven years. Four GPs. Multiple courses of antibiotics for 'infections that kept coming back.' Two endoscopies — both normal. She was told it was stress, and offered antidepressants. Her GI-MAP found Blastocystis hominis — a parasite that standard culture consistently misses but DNA testing identifies clearly. Elastase of 74, severely low enzyme function. Secretory IgA critically depleted. Zonulin elevated. Four specific findings, one test, one targeted protocol. Within three months of addressing those specific findings, her symptoms had resolved for the first time in over a decade."
— This is what "test, don't guess" means in practice. The test cost less than two months of supplements she'd been taking without a clinical basis.
"The GI-MAP Entry Programme is Test, Don't Guess applied to its own pricing. One test. Real data. A protocol built from that data. No guessing, no generic advice, no supplements chosen at random. The same clinical rigour as the full programme — with a single test as the starting point."
| Situation | GI-MAP Entry | TDG Five-Test |
|---|---|---|
| Gut symptoms are your primary complaint (IBS, bloating, constipation, reflux) | Strong starting point | Included + hormone, blood, OAT, food |
| Unexplained fatigue with gut symptoms | Good first step | Full picture — OAT and blood add energy markers |
| Skin conditions (eczema, acne, psoriasis) | Gut is usually the driver | Adds hormone and food sensitivity layer |
| Hormone symptoms (PCOS, endometriosis, PMS) | Partial — beta-glucuronidase is relevant | DUTCH test essential for full picture |
| Weight loss resistance | Partial — gut dysbiosis contributes | Thyroid, insulin, cortisol testing essential |
| Post-antibiotic gut disruption | Ideal | Comprehensive — but gut entry is appropriate |
| Budget constraints — want to start somewhere | This is why it exists | £3,500 — full credit applied if you upgrade |
If your GI-MAP results reveal a clinical picture that clearly warrants broader investigation — and in my experience, they often do — your full £597 is credited against the TDG Five-Test Programme. You don't pay twice for the gut work. The GI-MAP Entry Programme is a genuine starting point, not a sales tool.
The five-test programme builds on the GI-MAP with comprehensive blood chemistry, DUTCH hormone panel, Organic Acids Test, and food sensitivity testing — giving you over 900 data points across every body system. Learn about the full programme →
Book your session through the link below. Test kit is dispatched to your address within 2–3 working days of booking confirmation.
Stool sample collected at home with the kit provided. Returned by pre-paid post to the laboratory. Results typically take 10–14 working days.
I prepare a full clinical interpretation report — every marker explained, cross-referenced, and prioritised. You receive this before the results session.
60 minutes via video call. I walk you through every finding. We agree the protocol together. Written protocol follows within 24 hours.
The full TDG Five-Test Programme at £3,500 is the most comprehensive functional health assessment I offer — and it produces the most comprehensive clinical picture. There are genuinely situations where five tests running simultaneously is the right answer, and I wouldn't recommend anything less.
But I also know that for many people, £3,500 is a significant barrier — and waiting for that budget to become available means continuing to live with symptoms that are, in many cases, traceable to a handful of specific gut findings. The GI-MAP Entry Programme exists because Test, Don't Guess applies to its own pricing. If there is a data-based starting point available at a fraction of the cost, that is more honest than telling someone the only option is the full programme.
This is not a compromise on clinical rigour. Every protocol I write from a GI-MAP is as targeted and evidence-based as everything else I do. The difference is scope — one test gives you one system's picture. The five-test programme gives you the whole body. Both are built on data. Neither involves guessing.
One test. One session. One protocol built from your actual biology. £597 — and fully credited if you upgrade to the full programme.
Book Your GI-MAP Session →