Energy & Fatigue
Find the measurable cause behind persistent tiredness and brain fog. Seventeen markers that explain low energy: iron status (iron, ferritin, transferrin, saturation), thyroid function, vitamin B12 and D, blood-sugar dynamics, the cortisol axis and inflammation. Fatigue usually has a cause you can correct.
- Own draw room in Barcelona
- In-house analyzers (no outsourcing)
- AI-assisted report in 24–48 h
Secure checkout · results in 24–48 h
What's tested?
- Nutrients6
- Thyroid3
- Electrolytes1
- Metabolic2
- Stress & adrenal3
- Heart & lipids1
- Inflammation1
Why this panel?
For anyone dealing with persistent tiredness, brain fog, low motivation or reduced output despite adequate sleep.
Test process
- 01Reserve online. Book your panel and a slot at our Barcelona lab in a couple of minutes.
- 02Blood draw at the lab. A quick, comfortable draw by our team — most panels are a single sample.
- 03In-house analysis. Your sample is run on our own analysers and every result is physician-reviewed.
- 04Results + plan in the app. Get your report against optimal ranges, with an AI summary and clinician guidance.
Pre-test considerations
Fast for 10–12 hours before your draw (water is fine) and book a morning slot — iron and cortisol are most informative early. Pause biotin supplements for 48 hours.
The full picture
17 biomarkers measured in a single visit
Our own Barcelona lab
Draw, analysis and physician review under one roof
A plan you can act on
AI report, lab-expert validation and a clinician’s read against optimal ranges
What we test with Energy & Fatigue
17 biomarkers in this panel · Browse the full catalog
Your biomarkers reveal what your body can't tell you
Serum iron
Iron available in blood.
Learn moreThyroidTSH
Hormone that regulates the thyroid.
Learn moreElectrolytesMagnesium
Cofactor in more than 300 enzymes.
Learn moreMetabolicHbA1c
Average blood sugar over the last 3 months.
Learn moreStress & adrenalMorning cortisol
Stress hormone measured in the morning.
Learn moreHeart & lipidsHomocysteine
High = cardiovascular + cognitive risk.
Learn moreInflammationHigh-sensitivity CRP
Low-grade systemic inflammation marker.
Learn moreSanté vs a standard blood test
| Standard analytics | Santé | |
|---|---|---|
| Biomarkers | ~15 routine markers | 17 in this panel |
| Reference range | Population 'normal' range | Personalised optimal range |
| Interpretation | Numbers, little context | AI report + lab-expert validation + physician review |
| Turnaround | Days to weeks, by post | ~5 days, in the app |
| Blood draw | Often referred out | In our own Barcelona lab |
Questions, answered
What causes of fatigue does it cover?
Low iron, thyroid dysfunction, B12 or vitamin D deficiency, blood-sugar issues and a dysregulated cortisol axis.
Do I need to fast?
Yes, 10–12 hours, and a morning appointment gives the most accurate iron and cortisol readings.
When are results ready?
Your report is in the app within about 5 working days.
Should I stop supplements?
Pause biotin for 48 hours, as it interferes with several assays. Continue prescribed medication.
Ready to see the full picture?
Book your panel today — physician-reviewed results in the app.
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