Selenium, an essential nutrient for humans and animals, occurs as a trace element in most soils. Selenium can move into water systems when soil is disturbed by various types of development, or as a ...

A lack of the mineral selenium in the diet puts people at risk of paracetamol overdose, even when the painkiller is taken at levels claimed to be safe on the packaging, according to collaborative ...

A balanced diet is critical for healthy hair, but overloading on specific nutrients has been shown to have undesirable effects. An excess intake of selenium, for instance, can be toxic to the blood in ...

This archived news story is available only for your personal, non-commercial use. Information in the story may be outdated or superseded by additional information. Reading or replaying the story in ...