Specialist Investigation · Add-On
Add HTMA to any blood chemistry test — and save
Hair Tissue Mineral Analysis maps your mineral and metal excretion pattern over the past 8–12 weeks — the Ca/P metabolic rate, the Na/K stress and vitality ratio, the Zn/Cu hormone balance, and toxic metal excretion. Combined with blood chemistry, it adds a dimension that blood markers alone cannot capture. One teaspoon of hair. No blood draw.
Gut Health
Full Gut Screens
The GI-MAP and Organic Acids Test read different aspects of gut function. Together they give a complete picture of ecology, barrier integrity, digestive capacity, and the cellular consequences of gut dysfunction.
Gut · Core Screen
GI-MAP + Organic Acids Test
The most clinically complete gut health investigation available. The GI-MAP maps the ecology, identifies pathogens, quantifies barrier markers, and assesses digestive enzyme capacity. The OAT reveals the cellular consequences of gut dysfunction — mitochondrial impact, candida and bacterial metabolites, B-vitamin functional status, and glutathione depletion. Each test raises questions that only the other can answer.
GI-MAP (Diagnostic Solutions) — 170+ targets: pathogens, commensals, H. pylori virulence, Akkermansia, Bifidobacterium, Lactobacillus, elastase, zonulin, sIgA, beta-glucuronidase, calprotectin, anti-gliadin sIgA
Organic Acids Test (Great Plains / Mosaic) — 75 markers: Krebs cycle, mitochondrial function, B-vitamin functional status, candida and bacterial metabolites, neurotransmitter metabolites, oxalates, glutathione (pyroglutamate)
Why together
Elevated arabinose on OAT suggests Candida — but is it gut-derived or systemic? GI-MAP Candida quantification answers this. Low elastase on GI-MAP suggests pancreatic insufficiency — but is it driving the Krebs cycle disruption visible on OAT? Both together build the causal chain neither establishes alone.
Environmental · Gut
OAT with Environmental Add-Ons
The Organic Acids Test with glyphosate, mycotoxin, and environmental chemical add-on markers gives a comprehensive toxic burden picture alongside the gut and cellular energy assessment. For anyone with building exposure history, unexplained multi-system symptoms, or chemical sensitivity, this is the investigation that establishes the environmental load the standard gut panel misses.
OAT base panel — gut metabolites, mitochondrial, neurotransmitter, B-vitamins, oxalates, glutathione
Glyphosate add-on — urinary glyphosate and AMPA (the primary herbicide marker)
Mycotoxin screen — ochratoxin A, trichothecenes, aflatoxins, zearalenone, citrinin (Mosaic Diagnostics / RealTime Labs)
GPL-TOX / Environmental profile — volatile solvents, MTBE, phthalates, parabens, PFAS if indicated
Why together
Elevated OAT pyroglutamate (glutathione depletion) is the downstream signal. Mycotoxin and glyphosate panels identify the upstream cause. Without both, you see the consequence but not the cause — and cannot design a clearance protocol without knowing what is driving the glutathione demand.
Metabolic & Hormonal
Blood Chemistry + Hormone Testing
Blood chemistry and the DUTCH Plus read the metabolic and hormonal picture from different angles. Blood chemistry establishes the current metabolic status. The DUTCH establishes how hormones are being produced, used, and cleared — and what the HPA axis is doing through the day.
Hormones · Metabolic
Randox Blood Chemistry + DUTCH Plus
The most complete hormonal and metabolic investigation outside of the full TDG five-test programme. Randox blood chemistry establishes the metabolic baseline — thyroid, glucose, iron, liver, inflammatory markers, lipids, and nutrients. The DUTCH Plus adds the full hormonal picture — oestrogen metabolite pathways, progesterone metabolites, cortisol diurnal pattern, and androgen status. Together they answer what blood chemistry alone and DUTCH alone cannot.
Randox blood chemistry — comprehensive metabolic panel: thyroid (TSH, FT3, FT4, antibodies), iron/ferritin, inflammatory (hsCRP), glucose/insulin/HOMA-IR, liver (ALT, GGT, albumin, bilirubin), lipids (TG:HDL ratio), vitamins D, B12, folate, magnesium, HbA1c
DUTCH Plus — oestrogen production and metabolite pathways (2-OH, 4-OH, 16-OH), progesterone metabolites, testosterone and DHEA metabolites, cortisol 4-point diurnal pattern + CAR, melatonin, adrenal androgens
Why together
The DUTCH shows elevated evening cortisol driving sex hormone disruption. The blood chemistry shows the fasting insulin and GGT elevation confirming the downstream metabolic consequence. The cortisol pattern explains the thyroid conversion impairment visible on blood chemistry. Neither test makes full sense without the other.
Blood · Specialist
Randox 300 + Food Sensitivity Panel
The Randox 300-marker comprehensive blood panel combined with the food sensitivity IgG panel. For clients who want the most complete available blood chemistry picture alongside identification of the specific foods driving immune reactivity and inflammation. The blood chemistry metabolic markers contextualise the food sensitivity results — barrier status, inflammatory load, and gut health indicators together explain which IgG elevations are genuine sensitivities versus gut barrier artefact.
Randox 300-marker comprehensive panel — the most complete blood chemistry available, covering metabolic, thyroid, haematology, liver, kidney, cardiac, hormonal, nutritional, and immunological markers
Food Sensitivity IgG panel — 200+ foods tested for IgG antibody reactivity, with IgA anti-gliadin for non-coeliac gluten sensitivity identification
Why together
Food sensitivity results require clinical context to interpret correctly. Broad IgG reactivity in someone with elevated inflammatory markers and poor protein digestion is a different clinical picture from narrow reactivity in a metabolically healthy person. The blood chemistry provides that context — determining whether the food panel is showing genuine sensitivity or gut barrier artefact.
Mineral & Specialist
HTMA Combinations
HTMA as an add-on to other investigations, or as an accessible standalone entry point. The mineral and metal excretion pattern adds a dimension that no blood or urine test provides.
HTMA · Blood
Blood Chemistry + HTMA
Blood chemistry and HTMA read mineral status from different perspectives. Blood chemistry captures what is circulating — the current serum concentration. HTMA captures what has been excreted through hair over the past 8–12 weeks — the excretion pattern reflecting metabolic mineral use and toxic metal burden. Together they give the most complete mineral and metabolic picture available outside of the TDG programme.
Randox blood chemistry panel — metabolic, thyroid, iron, liver, inflammatory, lipids, vitamins, minerals (serum magnesium, zinc, copper where included)
HTMA (TEI Labs) — 14 essential minerals + 16 toxic metals, 8 clinical ratios (metabolic rate, stress/vitality, thyroid, hormonal, adrenal, blood sugar, infection, chemical sensitivity)
Why together
Low serum magnesium tells you there is deficiency now. Low HTMA magnesium with elevated HTMA calcium tells you the Ca/Mg ratio has been disrupted for months, driving blood sugar instability and the muscular and neurological symptoms the blood value alone doesn't contextualise. The excretion pattern explains the blood value.
HTMA · Standalone
HTMA — Accessible Entry Point
HTMA as a first step — for clients who want a functional investigation but are not ready for the full TDG programme, for children who cannot or will not do blood draws, for people who find stool testing difficult, or for anyone looking for a cost-effective initial picture of their mineral and metabolic status. One teaspoon of hair. No blood draw. No timing requirements. Results inform where the full investigation should go next.
HTMA (TEI Labs, USA) — 14 essential minerals, 16 toxic metals, 8 key ratios, metabolic type analysis, pattern detection (4 Lows, Calcium Shell, Copper Toxicity, Iodine markers)
Written interpretation — full clinical narrative covering metabolic type, key ratios, toxic metal findings, and cross-test recommendations for the next investigation
30-minute results call — review findings and agree next steps
What this establishes
Which direction the fuller investigation should go. HTMA findings often point clearly to blood chemistry (adrenal pattern → DUTCH), gut investigation (low cobalt → low stomach acid → GI-MAP), or toxic burden investigation (elevated mercury → OAT + provoked urine). HTMA is the clinical map for choosing what to test next.
Not sure which investigation is right for your situation?
The discovery call is where this decision gets made — 20 minutes, free, no obligation. Stephen will tell you honestly which tests are most likely to be highest yield for your specific clinical picture.
Book a free discovery call →