Vitamin D

Apr 17, 2026

Why am I so tired? 7 blood values that explain it

Persistent fatigue often has a measurable cause. Discover which 7 blood values explain why you feel so tired and what yo...

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Vitalcheck

3 mins read

Mar 31, 2026

Vitamin D deficiency in the Netherlands: how serious is it?

An estimated half of the Dutch population has suboptimal vitamin D levels. What are the risks, who is most vulnerable an...

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Vitalcheck

3 mins read

Blood Values

Blood Values • Jan 31, 2026

Vitamin D deficiency: symptoms, causes and how to test

Vitamin D deficiency is common in the Netherlands. Learn about symptoms, risk groups and how to detect it with a blood t...

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Vitalcheck

1 min read