The video explains the metabolic adaptions in fasting and starved states. It explains all the stages of metabolic changes and the role of kidneys in prolonged starvation. TIMELINE: 0:00 Learning objectives 0:15 Introduction 1:28 Stages of fasting and starvation 1:58 Stages of starvation and fasting with characteristics 2:51 Energy providers in fasting and starvation 3:48 Stages of starvation and utilization of fuel 4:59 Metabolic changes in Initial stage 8:14 Metabolic changes in Intermediate stage 10:50 Metabolic changes in advance stage of starvation 11:29 Role of the kidney in prolonged starvation