This module focuses on the basic concepts of human nutrition. Students gain an appreciation for the role and function of the macro and micronutrients essential for human health, as well as the mechanisms of immune reactions, and examine how these processes may be affected by nutritional deficiencies. Students learn about the scientific rationale for defining nutritional requirements in healthy individuals and populations, with reference to specific conditions such as pregnancy, lactation and old age. The linking of cultural and social identity with food choices is examined, noting the increasing cultural diversity of food choices in Singapore and the differences identified by social class and personal beliefs. The health, nutritional and social aspects of obesity, body image and disordered eating are also included.