What is selenium?

Selenium is an essential element that plays a crucial role in maintaining healthy thyroid function [1]. It is necessary in certain amounts to help the thyroid gland function properly, and it can be found in a variety of foods such as Brazil nuts, mushrooms, spinach, milk, yogurt, lentils, and cashews.

The typical daily requirement for selenium varies by region but generally falls within the 100 to 200 micrograms range for adults. However, it is important to not overconsume selenium as excessive intake can lead to adverse effects, though specific consequences of high selenium intake were not discussed by Andrew Huberman. For children aged 14 years and younger, the requirements are much lower, around 30 to 40 micrograms [1].