As a Noun: 1. NUTRITION is the measure of the nourishment or energy that is obtained from food, or the study of the proper amounts of food required to grow and stay healthy. Note: 1. The signer in the video is giving an Auslan explanation of the English keyword NUTRITION. There appears to be no commonly used Auslan sign for NUTRITION (but some signers represent this visually using depicting signs, once they have established the topic). If you know a sign for NUTRITION used by you or other Auslan users (deaf people or interpreters) please go to "Report missing sign" and supply details. Thank you.