Get to the root of how you feel
Some things you feel, but can’t always explain. Persistent fatigue. Bloating that won’t shift. Sleep that never quite restores you. Mood swings, brain fog, stubborn weight, low mood or a body that just doesn’t feel like it used to.
At Combe Grove, we believe that lasting wellbeing starts with understanding, not guessing. That’s why we offer two of the most respected functional testing panels available today: the GI-MAP (GI Microbial Assay Plus) and the DUTCH Test (Dried Urine Test for Comprehensive Hormones) by Precision Analytical.
Both are advanced, laboratory-grade diagnostic tests used by practitioners around the world to uncover the underlying imbalances that everyday blood tests often miss, giving you clear, personalised data to guide your path back to feeling well.

GI-MAP: A Complete Picture of Your Gut Health
Your gut does far more than digest food. It’s central to your immunity, your mood, your skin, and your energy. When it’s out of balance, the effects can ripple through your entire body.
The GI-MAP is a comprehensive stool analysis that uses quantitative PCR (qPCR) DNA technology, the gold-standard method, to identify the exact organisms living in your gut. Unlike older culture-based stool tests, which can miss anaerobic bacteria, viruses, and low-level infections, the GI-MAP detects and measures the specific genetic material of pathogens, parasites, opportunistic bacteria, fungi, and beneficial flora, all from a single sample.
What the GI-MAP looks at:
- Pathogens & parasites — bacteria, viruses, and parasites that may be driving digestive symptoms or infection
- Opportunistic & beneficial bacteria — a full map of your microbial balance
- H. pylori — including virulence factors and antibiotic resistance genes, where present
- Gut function markers — digestion and absorption (pancreatic elastase), inflammation (calprotectin), immune defence (secretory IgA), and gut barrier integrity (zonulin)
- Gluten reactivity — via anti-gliadin antibody markers
Who the GI-MAP can help:
- Anyone with ongoing bloating, IBS-type symptoms, constipation, or irregular digestion
- People who suspect SIBO, dysbiosis, or a lingering parasite or infection
- Those with skin conditions, low mood, or fatigue that may be linked to gut-immune imbalance
- Anyone who has tried diet changes or supplements without knowing what they’re actually treating
- People wanting a genuine, data-led starting point for gut healing — rather than trial and error
Instead of guessing which probiotic or protocol might help, the GI-MAP gives you (and your practitioner) a precise, personalised roadmap, so any changes you make are targeted, not generic.
The DUTCH Test: Understanding Your Hormones, Properly
Hormones influence almost everything, energy, sleep, mood, metabolism, cycles, stress resilience and how you age. Yet a standard blood test only captures a single snapshot, often missing the full rhythm of how your hormones behave across the day.
The DUTCH Test, developed by Precision Analytical, is one of the most advanced hormone assessments available. Using dried urine samples collected across a full day, it maps not just your hormone levels, but how your body produces, uses and clears them, giving a far richer picture than blood or saliva testing alone.
What the DUTCH Test looks at:
- Sex hormones: oestrogen, progesterone and testosterone, along with their metabolites
- Cortisol patterns: your free cortisol and cortisone rhythm across the full day, revealing how your stress response and circadian rhythm are functioning
- DHEA-S: a marker of adrenal reserve and resilience
- Melatonin: to help understand sleep quality and disruption
- Organic acids: markers of nutritional status, oxidative stress and gut-hormone connections
- 8-OHdG: a marker of oxidative stress and cellular ageing
Who the DUTCH Test can help:
- Women navigating perimenopause, menopause, PMS, or irregular cycles
- Anyone under chronic stress, or experiencing burnout, anxiety or low resilience
- People with persistent fatigue, poor sleep or a disrupted body clock
- Those on or considering hormone replacement therapy, wanting to monitor how their body is responding
- Men and women looking to understand low libido, mood changes or unexplained weight shifts
- Anyone wanting to move beyond a single blood draw and understand their hormonal pattern, not just a number
Because the DUTCH Test captures your natural daily rhythm rather than one isolated moment, it often reveals patterns, like a flattened cortisol curve or a late-night cortisol spike, that explain symptoms other tests simply can’t see.

Why Test at Combe Grove?
Functional testing works best when it’s paired with real support to interpret it and turn it into action. At Combe Grove, your results don’t just arrive as a report, they become the foundation of a personalised plan, guided by our team and woven into the wider rest, nutrition and movement support we offer.
- Evidence-based: both tests use validated, clinically recognised laboratory methods (qPCR and dried urine hormone metabolite analysis)
- Personalised: no generic advice; your protocol is built around your own results
- Simple to complete: both tests are done comfortably at home, with clear instructions
- Expert guided: your results are reviewed and explained by our practitioners, so you understand exactly what they mean and what to do next
Ready to understand what's really going on?
Whether it’s your gut, your hormones, or both, these tests offer something rare: real clarity. No more guessing, just clear, science-backed answers, and a plan built around you.
Book your GI-MAP or DUTCH Test consultation at Combe Grove today.

