Two educational modules using interactive multimedia to assist undergraduate students in building knowledge and skills in enteral and parenteral nutrition support were developed and used as part of a clinical nutrition course at Cal Poly State University. The selection, calculation, administration, and monitoring of nutrition support systems is complex, has life and death consequences, and requires practice to achieve mastery. The interactive computer tutorials were designed as a supplement to lecture to enhance the learning of nutrition support and engage the student in the learning process in an active manner. Material in the tutorials is presented in a variety of formats including information frames, video clips, and illustrations, and interactive questions. Using the tutorials gives the student simulated experience without depending on the availability of a practice patient population and helps students gain skills and confidence before being confronted with an actual patient. Students can work through the modules independently, at their own pace, and according to their preferred mental information acquisition (linear or nonlinear). Following each module, an interactive case study is presented so that the student is required to apply information learned and further develop skills. The tutorials can be accessed by dietitians and dietetic students throughout the world via the world wide web