Problems with scarcity
In large parts of Europe, there is a problem with low selenium levels in the soil. This means that livestock at places where the grassland soils are below guideline levels for selenium, are not getting the selenium they need. The problem extends to humans, as well, as we consume farmed crops and meat and dairy from the animals that feed off the selenium-depleted crops.
In Ireland for example, a government report issued last year showed that the average selenium intake is insufficient for much of the population. In other words, both humans and animals in Ireland are challenged when it comes to getting the optimal amounts of this very important nutrient.