What does selenium do in the body?

Selenium supports selenoproteins involved in thyroid hormone metabolism, antioxidant defence and other essential biological processes throughout the body.

How much selenium do I need per day?

The adult selenium RDA is 55 mcg per day. Requirements vary by life stage, and this figure is not a supplement dose.

What happens if you take too much selenium?

Excessive intake can cause selenosis, with possible symptoms including garlic-like breath, nausea, hair loss, brittle nails and neurological effects.

Are Brazil nuts high in selenium?

Yes. Brazil nuts can contain very high amounts of selenium, but their content varies considerably, so intake can be unpredictable.

Is selenium good for the thyroid?

Selenium is important for normal thyroid function, but supplementation benefits are mixed and should not replace prescribed thyroid treatment.

Selenium Review: Benefits, Dosage & Evidence