Vitamin D deficiency among Dutch people grows, GPs concerned

New figures show that a growing part of the Dutch population is not getting enough vitamin D. Especially the elderly, people with dark skin and those who spend little time outdoors are at risk. GPs are concerned and want better information.

Why a deficiency occurs

The body mainly produces vitamin D under the influence of sunlight on the skin. In the Dutch autumn and winter, the sun is too low to trigger sufficient production. As a result, many people rely on their reserves for half a year.

Food provides only a small part: fatty fish, eggs and fortified products. For certain groups, the Health Council therefore advises a daily supplement. Those who are unsure whether this is necessary should consult their GP.

A deficiency often develops insidiously. Fatigue and reduced resistance can be signs, but are not conclusive. Only a blood test provides certainty.