InsideTracker Cognition blood test - 7 blood values
A 7-biomarker cognition panel inspired by InsideTracker's Cognition category — blood sugar regulation, insulin, cortisol, B12 and folate behind your cognition score.
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Biomarkers Included
7 markersThe InsideTracker Cognition blood test measures the blood values InsideTracker uses to score cognition: fasting insulin, fasting glucose, HbA1c, cortisol, vitamin B12 and folate, plus the calculated HOMA-IR index. Here you buy exactly that panel, drawn at a certified Dutch lab.
Your brain runs on a stable fuel supply and the right B vitamins. These values show whether that foundation is in order.
Why this test?
InsideTracker gives members a Cognition score from 0 to 100, calculated from a fixed set of blood values. If you search for InsideTracker in the Netherlands, you usually want those values measured without a membership and without shipping a sample to the United States.
This blood test is that alternative: the same blood values behind the Cognition category, drawn at a certified Dutch lab and returned digitally in your account, with an assessment by a BIG-registered doctor.
Who is this test for?
This panel may suit people who want to see the measurable foundation under their focus and energy. It can be relevant for:
- People with focus problems or brain fog who want an objective starting point, alongside their GP's advice
- Vegetarians and vegans who want to check their B12 and folate
- People in a busy or stressful period who want to see their cortisol
- People who want the InsideTracker Cognition category measured in the Netherlands
What is tested?
This panel measures 7 blood values:
- Blood sugar regulation: Fasting Glucose, Fasting Insulin and HbA1c, plus the calculated HOMA-IR insulin resistance index.
- Stress: Cortisol.
- B vitamins: Vitamin B12 and Folate.
What can this test tell you?
The results show how your blood sugar regulation, your stress hormone and your B vitamins compare to the reference ranges. A low B12 or disturbed glucose regulation are reversible factors that can noticeably affect your focus and energy.
Sleep and cognition are closely linked: our InsideTracker Sleep blood test measures the blood values behind your sleep quality. The full InsideTracker blood test measures 36 blood values in one go. Keep in mind that a single value is not a diagnosis.
How is the sample collected?
For this blood test, a staff member draws a small tube of blood at a certified location. You can choose from 700+ collection sites, so there is almost always a location near you.
You only need your appointment confirmation and a valid ID. The draw usually takes just a few minutes.
When is this test useful?
Some people choose to measure these values:
- When they often feel tired or unfocused and want to know whether a measurable factor is behind it
- When they eat plant-based and want to know their B12 status
- When they want to see their cortisol during a stressful period
- When they want to follow the effect of better sleep, diet or exercise on their blood sugar
What do the results mean?
What the results mean depends on your personal situation. Focus complaints rarely have a single cause; these values show part of the picture.
Always discuss any deviating values with your GP, so you know what the results may mean for you personally.
Preparation
Fasting is required for this panel: your glucose and insulin are only interpretable when fasted, and HOMA-IR is calculated from them. Do not eat for 10 to 12 hours before the draw and drink only water.
Plan a morning draw, which also makes your cortisol most informative. If in doubt, discuss your situation with your GP.
What happens after the results?
You receive your results digitally in your account, usually within a few working days. For each value, you can see whether it falls within the reference range.
Every blood test result includes a professional assessment from a BIG-registered doctor. For treatment decisions, discuss your results with your GP.
Frequently Asked Questions
From order to report in 4 steps
A blood test without referral: no waiting, no waiting list. Just order and go.
Choose your markers
Pick a performance panel or build your own test. Testosterone, CRP, ferritin, thyroid. You choose what gets measured.
Receive your lab referral
Within 1 business day you'll receive an email from ZorgDomein with a barcode. Orders outside business hours are processed from the next business day.
Get tested at a lab near you
Show the barcode on your phone and bring a valid ID. Done in under 15 minutes.
Receive your report from the doctor
A BIG-registered physician assesses your results and writes a personal report. On your dashboard within a few business days.
Choose your markers
Pick a performance panel or build your own test. Testosterone, CRP, ferritin, thyroid. You choose what gets measured.
Receive your lab referral
Within 1 business day you'll receive an email from ZorgDomein with a barcode. Orders outside business hours are processed from the next business day.
Get tested at a lab near you
Show the barcode on your phone and bring a valid ID. Done in under 15 minutes.
Receive your report from the doctor
A BIG-registered physician assesses your results and writes a personal report. On your dashboard within a few business days.
Always a location near you
With 700+ certified phlebotomy points across the Netherlands.
What's Included
This panel covers 7 biomarkers related to your training, recovery, and overall health.
Fasting insulin measures the amount of insulin in your blood after an overnight fast. It helps assess how efficiently your body manages blood sugar and can reveal insulin resistance before glucose levels become abnormal.
Learn moreVitamin B12 is considered essential for red blood cell formation, neurological function, and DNA synthesis. Deficiency may develop gradually and is sometimes associated with dietary patterns. Healthcare providers can help interpret your results.
Learn moreHbA1c (glycated haemoglobin) reflects your average blood sugar levels over the past 2-3 months. It is the gold standard for long-term blood sugar monitoring and diabetes management.
Learn moreFasting glucose measures the level of sugar (glucose) in your blood after an overnight fast. It is one of the primary tests used to screen for and monitor diabetes and pre-diabetes.
Learn moreCortisol is the body's primary stress hormone, produced by the adrenal glands. It regulates metabolism, immune responses, and the sleep-wake cycle. Levels follow a natural daily rhythm, peaking in the morning and declining throughout the day.
Learn moreFolate, also known as vitamin B9, is a water-soluble vitamin involved in cell division and DNA synthesis. Adequate folate levels are considered important for overall health and may be particularly relevant during periods of rapid growth.
Learn moreHOMA-IR (Homeostatic Model Assessment for Insulin Resistance) is a calculated index derived from fasting glucose and fasting insulin levels. It is widely used to estimate insulin resistance, a condition where the body's cells respond less effectively to insulin.
Learn moreInsulin (Fasting)
MetabolicFasting insulin measures the amount of insulin in your blood after an overnight fast. It helps assess how efficiently your body manages blood sugar and can reveal insulin resistance before glucose levels become abnormal.
Learn moreVitamin B12
VitaminsVitamin B12 is considered essential for red blood cell formation, neurological function, and DNA synthesis. Deficiency may develop gradually and is sometimes associated with dietary patterns. Healthcare providers can help interpret your results.
Learn moreHbA1c (Glycated Hemoglobin)
MetabolicHbA1c (glycated haemoglobin) reflects your average blood sugar levels over the past 2-3 months. It is the gold standard for long-term blood sugar monitoring and diabetes management.
Learn moreGlucose (Fasting)
MetabolicFasting glucose measures the level of sugar (glucose) in your blood after an overnight fast. It is one of the primary tests used to screen for and monitor diabetes and pre-diabetes.
Learn moreCortisol
HormonesCortisol is the body's primary stress hormone, produced by the adrenal glands. It regulates metabolism, immune responses, and the sleep-wake cycle. Levels follow a natural daily rhythm, peaking in the morning and declining throughout the day.
Learn moreFolate (Folic Acid)
VitaminsFolate, also known as vitamin B9, is a water-soluble vitamin involved in cell division and DNA synthesis. Adequate folate levels are considered important for overall health and may be particularly relevant during periods of rapid growth.
Learn moreHOMA-IR
MetabolicHOMA-IR (Homeostatic Model Assessment for Insulin Resistance) is a calculated index derived from fasting glucose and fasting insulin levels. It is widely used to estimate insulin resistance, a condition where the body's cells respond less effectively to insulin.
Learn moreRelated biomarkers
Biomarkers often explored alongside this test for a fuller picture.
17-OH Progesterone
17-OH Progesterone is a precursor hormone involved in cortisol and androgen synthesis. For active individuals, this marker may provide insight into how your body manages stress hormones and supports recovery and performance.
ACTH (Adrenocorticotropic Hormone)
ACTH is the pituitary hormone responsible for triggering cortisol release from your adrenal glands. For active individuals, monitoring ACTH may help assess how your body adapts to training stress and supports recovery processes.
AMH (Anti-Müllerian Hormone)
AMH reflects the number of small follicles still queued up in your ovaries: the ovarian reserve. For female athletes it is a useful value because, unlike FSH, LH and estradiol, it can be drawn on any cycle day and therefore slots into an existing blood draw without any fuss. Worth knowing: AMH is not a gauge of your training load. A cycle disrupted by low energy availability shows up mainly in LH, FSH and estradiol. AMH says something about your egg supply, not about your recovery.
Active Vitamin B12
Active Vitamin B12 measures the bioavailable B12 your cells can utilise. For active individuals, B12 may support oxygen transport, energy metabolism, and recovery. This test could help optimise your performance-related nutritional status.
Androstenedione
Androstenedione is a precursor hormone converted into testosterone and estrogen. For active individuals, this marker may help assess hormonal pathways that influence muscle development, recovery, and overall physical performance.
C-Peptide
C-Peptide provides insight into insulin dynamics, which affects energy availability, fat metabolism, and recovery. Active individuals benefit from understanding their metabolic efficiency.
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