Selenium is an essential micromineral and plays a role in a variety of biological functions, primarily as a component of the amino acid, selenocysteine. It has an active role in supporting antioxidant protection and reducing potentially damaging reactive oxygen species.  It also important for DNA repair, and immune defence. Selenocysteine is featured within enzymes that form thyroid hormones and is thereby involved in maintaining healthy metabolic and thyroid balance.

The soil concentration of selenium is highly variable with some countries having quite depleted soil levels, including New Zealand, Finland, Denmark, and parts of Russia and China. Factors impacting its absorption from foods include vitamins C, A and E status.

The recommended daily intake of selenium is 60 µg for women and 70 µg for men. Selenium may be dangerous if taken in large amounts or for a long period. A daily dose of 150 mcg for adults of selenium from dietary supplements should not be exceeded. Vitamin and mineral supplements should not replace a balanced diet. 

Food sources of selenium include Brazil nuts, broccoli, chicken, eggs, fish (including cod and salmon), garlic, meat, onions, wholegrains grown in selenium rich soils.

Key Indications:

To maintain healthy thyroid and metabolic function

As a supportive nutrient for cell protection from free radical damage

To support healthy skin and nail growth

To support a healthy immune function and response

To aid in normal growth and development in children