Selenium is an essential mineral meaning it needs to be obtained through the diet. It is serves many important roles in the body and in this short video I cover some of its those roles and where you can get it from in different foods. Comment GUIDE below if you would like my FREE 'Underactive Thyroid 101' guide and I will send it to you within 24 hours! | Diet vs Disease with Joe Leech - MSc Nutrition & Dietetics