What is Selenium?

In short

Selenium is an essential trace element. Your body needs it in small amounts and incorporates it into various proteins.

What does the body need it for?

Selenium contributes to the normal function of the immune system and thyroid. It contributes to the protection of cells from oxidative stress. It contributes to the maintenance of normal hair and nails and to normal spermatogenesis.

Where is it found?

• Brazil nut (1 nut)50 µg
• Sea fish (100 g)30 µg

How much is good?

NRV (EU reference value)

55 µg

Too much

Safe upper limit (EFSA)

255 µg

Maximum per daily dose (BfR)

45 µg

Too much selenium over time can cause hair loss and brittle nails. EFSA sets a tolerable upper intake level for adults of 255 µg daily. This includes food and food supplements.

Other names

Selenium, Selenio, Se

Source

EU Regulation 432/2012; EFSA 2023