Most adults with ADHD, autism or anxiety have waited years for a diagnosis and been offered medication as the primary intervention. That addresses the symptom. It doesn't address why the brain isn't working the way it should. We do the second part.
The current pathway for adult ADHD, autism and anxiety is built around diagnosis and medication. For many people it provides meaningful relief. But for a significant proportion, medication either doesn't work, works partially, or creates new problems — because the underlying biochemistry driving the symptoms was never investigated.
The question that almost never gets asked is: why is your dopamine system not functioning optimally? Why is your nervous system dysregulated? What is actually producing these symptoms in your specific body?
Adult ADHD diagnosis and treatment in the UK is in crisis. But the structural problem runs deeper than waiting times — it's that the entire medical model for neurodivergence is built around behavioural observation and pharmaceutical intervention, with almost no investigation of the underlying biochemistry.
ADHD, autism and anxiety are not single-cause conditions. They are clusters of neurological symptoms with multiple possible biochemical drivers. The TDG five-test programme identifies which of these are active in your body — and targets them specifically.
A diagnostic label tells you what your symptom pattern is called. It doesn't tell you why your brain is producing those symptoms in your specific body. The TDG programme investigates the why — and builds a protocol around the answer.
| Capability | Standard Neurodivergent Assessment | Detective Health TDG Programme |
|---|---|---|
| Neurotransmitter metabolite measurement | Not assessed — behavioural observation only | OAT: HVA, VMA, 5-HIAA directly measured |
| Gut-brain axis investigation | Not assessed | GI-MAP: dysbiosis, H. pylori, parasites, sIgA |
| Methylation status | Not assessed | Blood chemistry + DUTCH methylation markers |
| Blood glucose and insulin pattern | Not assessed | Fasting glucose, insulin, HbA1c, HOMA-IR, ferritin |
| Food reactivity (IgG antibodies to gluten, dairy and other foods) | Not assessed | HealthBeings IgG food panel (286 foods) |
| Cortisol and HPA axis function | Not assessed | DUTCH Plus: diurnal cortisol, CAR, DHEA-S |
| Protocol outcome | Diagnosis + medication prescription | Biochemical protocol targeting identified root causes |
Secure booking via Practice Better · Cancel or reschedule 48+ hours in advance
"The clients I see with ADHD, suspected autism or treatment-resistant anxiety almost all have something measurable driving their symptoms — and almost none of it has ever been looked for."
I started seeing a pattern years before I had the language for it: clients whose neurological symptoms — attention, mood dysregulation, anxiety, sensory overload — improved dramatically when we addressed what was happening in their gut, their blood chemistry, and their stress hormone systems. Not because I'd treated their ADHD, but because I'd improved their biology.
Some of that biology is well established and some isn’t, and the difference matters. Lower ferritin is consistently, if modestly, linked with ADHD in children (Wang 2017; Tseng 2018), and in rats iron deficiency reduces dopamine transporter function (Erikson 2000), but the only placebo-controlled iron trial in ADHD had 23 children (Konofal 2008). Gut bacteria differ between people with and without ADHD, though not in a consistent pattern (Rodrigues 2026), and probiotic trials haven’t shown a clear benefit on core symptoms (Yan 2026). That blood-sugar swings or methylation problems drive ADHD symptoms is a plausible mechanism, not a tested one. These are measurable biochemical processes, which is why I test rather than guess. What they aren’t, yet, is a proven explanation for anyone’s ADHD.
The TDG programme doesn't diagnose ADHD or autism. What it does is investigate the biochemistry that is — or isn't — supporting your brain's optimal function. That investigation almost always reveals something actionable.
Take the free biochemical screen. Three minutes. Identifies your dominant root cause cluster and which tests are most relevant to your presentation.