Selenium deficiency refers to not having enough selenium in your system. Symptoms may include fatigue, muscle weakness, and infertility, among others. The amount of selenium in food sources is largely ...

Our modern, industrial diets can be full of calories but paradoxically low in some important minerals. Having enough of these minerals, such as magnesium, is vital to good physical and mental health.

Selenium supports thyroid hormone production and immune system processes. Some studies link low selenium levels with higher thyroid disease risk, including thyroid eye disease. Studies using 100 ...

The global supplement market reached more than $485 billion in 2024, and some six in 10 adults are taking at least one dietary supplement a month, according to the U.S. Centers for Disease Control and ...

Holly has a degree in Medical Biochemistry from the University of Leicester. Her scientific interests include genomics, personalized medicine, and bioethics.View full profile Holly has a degree in ...