Which of these sounds most like you?
Find your situation below. Each path gives you the right starting point — clinical programme, a single test, or the education to understand what's going on.
01
Your situation
“My tests are normal but I still feel terrible — and nobody can explain why”
You’ve had standard blood tests. You’ve been told everything is fine. You don’t feel fine. This is the most common presentation we see — and the gap between “within reference range” and “functioning optimally” is exactly what functional testing closes. The TDG five-test programme is designed for this.
02
Your situation
“My gut has been a problem for years — bloating, irregular bowels, food reactions that don’t make sense”
Gut health is the most common single-system starting point. If gut symptoms are your primary concern and you want to begin there before committing to the full five-test programme, the GI-MAP Entry Programme gives you a complete picture of your gut ecology, barrier integrity, and digestive function — with full interpretation and a results call.
03
Your situation
“My hormones are all over the place — perimenopause, thyroid, mood, sleep, weight”
Hormonal disruption is almost always multi-system — thyroid conversion, adrenal activation, oestrogen metabolism, and gut health all interact. The DUTCH Plus hormone panel, read alongside blood chemistry, gives you the complete picture. Start with the free 20-minute call, or go straight to the Initial Consultation, to work out which tests are most relevant to your pattern.
04
Your situation
“I want to understand the science before I commit to anything”
Start with the clinical education — the articles, the clinical diagrams, and the TDG Starter Edition (available as a book, digital edition, or audiobook). The Learn page is the best entry point. Read the case studies to see what functional testing actually finds. When you’re ready, the free call takes 20 minutes.
05
Your situation
“Every diet works for someone else. None of them has worked for me”
Low fat, low carb, paleo, keto, plant-based — each has people it transformed and people it made worse, and the difference is not willpower. Metabolic Natures is a structured way of working out which balance of food suits you: two physiological axes, read together, with the strength of each shown rather than hidden. It is a starting point rather than a test result, and the page states plainly what the evidence for it is and is not.
06
Your situation
“I’m a practitioner looking for clinical tools or training”
The Detective Health clinical suite includes interpretation guides for all five functional tests, a practitioner workflow, and the TDG clinical manual. The FDN-P certification is the training foundation the entire TDG approach is built on. The For Practitioners page covers everything.
The steps, and what each costs
Most people take these in order. You can stop at any step.
Free · 5 min
The Health Pattern Finder looks across seven body systems. If you already know where the problem is: the gut quiz or the fat loss pattern finder. Each shows your result straight away; none is a diagnosis.
Free
A short call to work out whether testing is worth it for you, and where to start.
£145 · 45 min
You complete your Case File first; I prepare your Health Status Report from it and we go through it together. The £145 is credited against a programme if you go ahead within 60 days, not against single tests. See a sample report (fictional client).
£295
NHS or private blood results reviewed, with a written report. Credited against any programme booked within 60 days.
£265
For “every diet works for someone else”: a starting reading, a food guide and plan, and a follow-up.
£3,500
Five functional tests, interpreted together, with a consultation for each test and a written protocol.
Add-on
Exercise advice is part of every food and lifestyle plan. Personal training sessions can be added to any programme or test. The Move Well First programme has a waitlist.
Clients
A Quick Review (£45, a written answer to one question within 3 working days), a 30-minute check-in (£75), Follow-Through support (£89 a month), reorders and AIdan, all on one page.
Before you buy any tests: The Test Isn’t the Investigation, on why more results aren’t more answers, and what you’re actually paying a practitioner for.
Want to see it before you book? How the investigation fits together, an example report and an example plan, all for a made-up client.
Most read clinical articles
A starting point if you’d rather read before deciding anything.
Gut Health
SIBO Testing — What the Breath Test Actually Shows
Metabolic
Fatty Liver, Insulin Resistance, and the Metabolic Loop
Energy · OAT
Why Your Fatigue Might Be Cellular
Cardiovascular
Blood Pressure — The Lifestyle Signal You’re Being Medicated For
Longevity
Strength Is a Vital Sign — The Tests That Predict Longevity
Stress & Recovery
Breathwork — Why Practice Makes Perfect Under Pressure
Still not sure? That’s what the free call is for.
Twenty minutes, free, no obligation. I’ll tell you honestly whether functional testing is the right next step — and if it is, exactly where to start.
Book a free 20-minute call →