Some of the sources of fat in a human diet are given, including meat, milk, eggs, cream, nuts and seeds. The role of fat is explained, including forming nerves and acting as insulation. The dangers of consuming too much fat are mentioned.

First broadcast:
25 March 2003

The role of fats as a source of energy, and as an essential part of cell structure, should be discussed. Students could research how fat is used in the human body, such as an energy store and for insulation. Students could list the different types of fats, such as saturated, polyunsaturated, monounsaturated and so on, and look up what food these are found in and the recommended quantities for eating.