The mentioned video describes the distribution, daily required allowance, sources, metabolism deficiency, and toxicity of Cobalt and manganese. Watch the video and increase your knowledge. TIMELINE: 0:00 Introduction 0:10 Distribution of manganese in body 0:24 Daily requirement 0:30 Sources 0:38 Absorption and transport 1:09 Storage 1:11 Excretion 1:16 Functions 2:38 Deficiency 3:11 Toxicity 3:37 Cobalt 4:18 Sources 4:28 Requirements 4:50 Functions 5:34 Deficiency