In this video, You will learn about Selenium, An important mineral. The sources, functions, deficiencies and toxicity of selenium are also explained. TIMELINE: 0:00 Introduction 0:37 Selenocysteine 1:59 Selenium 2:27 Sources and RDA of Selenium 3:04 Biochemical Functions of Selenium 4:15 Selenium Deficiency 4:22 Keshan Disease 4:46 Kashinbeck Disease 5:10 Selenium Toxicity (Selenosis) 5:37 MCQs