Selenium is an important trace mineral and supports human health in a multitude of ways.

The mineral contributes to
- the protection of body cell constituents from oxidative stress
- the normal function of the immune system
- normal thyroid function
- the maintenance of normal hair and nails

The following groups of people may have higher selenium requirements:
Pregnant women, vegetarians and smokers.

Sources: Offal, meat, seafood, whole-grain products and nuts.