Value package
Vitamins, minerals & electrolytes
A broad blood test with the most commonly measured vitamins, minerals and the four electrolytes (sodium, potassium, calcium, magnesium), for a complete picture of your nutrient and electrolyte status in one blood draw.
Vitamins, minerals & electrolytes is a blood test measuring 9 biomarkers, reviewed by a doctor. Below you see exactly what is measured and what those results tell you.
Personal assessment by our BIG-registered doctors
Vitamins, minerals & electrolytes
With this test, another €66 and your blood draw fee is waived
Next step: choose your blood draw location
Composition
What exactly is measured
All 9 biomarkers at a glance. The laboratory's reference values always lead.
Vitamins, minerals & electrolytes159,-
- Vitamin D (25-OH)
- Vitamin B12
- Folic acid (B11)
- Magnesium
- Calcium
- Ferritin
- Zinc
- Sodium
- Potassium
How Bloodworks works
Order online
Choose your package and preferred location
Receive your lab form
Within 24 hours by email, with appointment planner
Schedule your blood draw
Or choose a walk-in location
Blood draw
Takes just a few minutes
Receive your report
Securely, typically within 2 working days from our physicians
Included
Your personal health dashboard
Sample view · fictitious data.
Within range
of the biomarkers within the lab reference
Latest measurement: 1 Jul 2026
Needs attention
Your development
Vitamine D3
- All your results in one secure place
- See your development with every new measurement
- Compare against your own earlier values
Included
Your laboratory report
Every abnormality is given context and advice by a doctor. Reference values always come from the laboratory.
Client
Reference
Collection date
06-05-2025
Report date
08-05-2025
2 abnormalities found
Magnesium & vitamin D too low, see explanation
Vitamins & Minerals
Doctor comment
Your magnesium and vitamin D are markedly reduced. This can contribute to fatigue, muscle cramps and lower immunity. Supplements are generally available over the counter in the Netherlands. At your levels, however, we advise read more ›
Clinical labs
ISO 15189-accredited laboratories
Venepuncture
Full venous draw, as in a hospital
Our own doctors
Every result reviewed and interpreted
Your trend
Every value over time in your dashboard
Experiences
What customers say
Vanuit de sportschool geattendeerd op Bloodworks en heel tevreden. Bloedonderzoek online besteld en kon direct terecht bij een lab in de buurt. Kreeg het labformulier per e-mail en…Ik heb eerder onderzoeken laten uitvoeren door andere organisaties, maar Bloodworks steekt daar met afstand bovenuit. De snelle service, het persoonlijke contact en de…Na geregeld duizelig te voelen ben ik langs geweest bij Bloodworks voor een bloedtest, snelle service en super snel uitslag gekregen! Advies gekregen van de specialisten om een…FAQ
Frequently asked questions
Do I need to fast?
Fasting is not strictly required for most markers in this package, but we recommend fasting (8 hours) for a reliable picture, especially for magnesium.
Which foods are rich in these nutrients?
Vitamin D comes mainly from sunlight and fatty fish. B12 is found mainly in meat, fish and dairy. Folic acid is in leafy green vegetables and legumes. Magnesium is in nuts, seeds and green vegetables. Our doctor provides context per marker.
How long should I stop taking supplements beforehand?
For a baseline measurement, we recommend stopping supplements 1–2 weeks beforehand, especially high-dose vitamins can influence the measurement. For B12 injections, a longer waiting period applies.
What is the difference between total and intracellular magnesium?
We measure serum magnesium (in the blood plasma). For intracellular magnesium (in red blood cells), a separate measurement exists that we do not offer.
How often should I have this measured?
A single measurement is sufficient for initial insight. With active supplementation or follow-up, re-measurement after a few months is common.
What if I want more specific markers?
Through Bloodworks Select you can add markers such as iodine, copper, selenium, vitamin A or vitamin K.
Is this package suitable for children?
We recommend consulting with a GP or paediatrician for children under 18 years.
How quickly do I receive my results?
Typically typically within 2 working days of blood draw. Some vitamin tests may take slightly longer.
Ready to gain insight?
Vitamins, minerals & electrolytes · 9 biomarkers · results typically within 2 working days