The claim
“A normal diet provides enough selenium — no one in Germany needs supplements.”
The statement points to an assumed sufficiency of a typical Central European diet, but ignores relevant geological and dietary differences that affect selenium intake in practice.
What the evidence actually shows
Soil selenium levels
Germany is among the comparatively selenium-poor regions in Europe. Selenium content in plant foods largely reflects soil concentrations — which means that relying on locally grown plant-based foods for selenium is a less reliable strategy than in regions such as North America, where soils (and therefore wheat) tend to be higher in selenium.
Dietary intake data
Most survey data for German adults report selenium intakes of approximately 35–50 µg/day. EFSA’s 2014 dietary reference value (population reference intake) for selenium is set at 70 µg/day for adults. This means a substantial proportion of the population regularly falls below the reference level.
Higher-risk groups
- Vegetarian and vegan diets, relying exclusively on plant sources from selenium-poor soils, tend towards lower intakes
- One-sided or highly processed diets may further reduce selenium intake
- Certain life stages (pregnancy, older age) involve altered requirements
Status markers
Lower selenium intakes in the literature are associated with reduced selenoprotein expression and lower selenium status biomarkers. These are observations about nutrient status, not direct disease claims — but they contradict the notion that general adequacy prevails.
EFSA and BfR status
- EFSA: Sets reference values for selenium. The fact that much of the population falls below them argues against characterising supply as broadly adequate.
- BfR: Acknowledges both under-supply in parts of the population and risks from unnecessarily high intake. This dual concern reflects the relatively narrow therapeutic window for selenium — another reason why blanket statements in either direction are not supportable.
Verdict
This claim is false. The combination of selenium-poor soils and frequently low dietary intakes makes the statement “Germany is well supplied with selenium” too sweeping. The appropriate approach is a sober assessment via dietary analysis and, where relevant, individual status measurement — not blanket reassurances that no one needs to pay attention to their selenium intake.