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Brain Fog Blood Test
11 Biomarkers | Venous Blood Test | CE-marked | UKAS-accredited | Doctor-reviewed results with personalised interpretation.
A focused blood test checking markers linked to brain fog, poor concentration, mental fatigue and low energy, including thyroid hormones, iron status, vitamin B12, folate and vitamin D. Designed for people who feel mentally cloudy, forgetful or unable to focus, this test gives clear, clinically reviewed insight into common blood markers that may affect energy and cognitive wellbeing.
Results are typically available within 2 working days from when your sample reaches the laboratory, excluding weekends and bank holidays.
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Vitamins & Nutritional Status
- Active Vitamin B12
- Folate
- Vitamin D
Thyroid Function
- TSH
- FT4
- FT3
Iron Status
- Ferritin
- Iron
- Total Iron Binding Capacity
- Unsaturated Iron Binding Capacity
- Transferrin Saturation
How to prepare
- Fasting required 8–12 h before the test (water only) recommended for glucose, cholesterol/triglyceride accuracy
- Sample timing: between 7:00 AM – 10:00 AM
- Stay hydrated; avoid strenuous exercise, heavy meals, and supplements (iron, B12, multivitamins, biotin) for 48 hours prior
- Continue prescribed medications unless otherwise directed
95 biomarkers. One complete picture.
A comprehensive internal health screen across your cardiovascular, liver, kidney, thyroid, hormonal, metabolic, immune and nutritional systems.
Why Your Health MOT Matters
A full body blood test, often referred to as a Health MOT, is designed to provide a comprehensive assessment of your internal health. Rather than investigating a single symptom or condition, it evaluates multiple biological systems simultaneously, offering a broad and structured overview of how your body is functioning.
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