Brain Fog Blood Test

Attend your appointment and one of our experienced nurses or phlebotomists will collect your blood sample. If your test also includes another sample, such as urine or stool, we will provide the necessary collection kit and clear instructions.

Results are typically available within 2–3 working days. Some individual markers may take longer if they require specialist laboratory processing. We will normally wait until the full profile is complete before issuing your reviewed results.

Yes. As this profile includes insulin and/or C-peptide, we recommend fasting for 8–12 hours beforehand. Please drink plain water and take usual medication unless you have been specifically advised otherwise.

This test may be particularly useful for: Brain fog; Poor concentration; Memory concerns; Mental fatigue; General health concerns.

This test is commonly chosen when investigating: Brain fog; Poor memory; Difficulty concentrating; Mental fatigue; Forgetfulness. Blood tests are only one part of an assessment, and results should be considered alongside your symptoms and medical history.

This test may help assess or investigate: Vitamin B12 deficiency; Folate deficiency; Vitamin D deficiency; Iron deficiency; Anaemia; Thyroid disorders; Insulin resistance; Metabolic syndrome; Diabetes & pre-diabetes; Early kidney dysfunction; Inflammation. An abnormal result does not necessarily confirm a diagnosis, but it may help guide further assessment.

This profile includes: Full Blood Count (FBC); Iron Studies; HbA1c; Fasting Insulin; C-Peptide; Urea & Electrolytes (U&E); Creatinine; Cystatin-C; Liver Function Tests (LFT); Calcium; Magnesium; Vitamin D; Vitamin B12; Folate; TSH; FT3; FT4; Thyroid Peroxidase Antibodies (TPO); Thyroglobulin Antibodies; High-Sensitivity C-Reactive Protein (hs-CRP).