Foods and Nutrition 1021 Lecture Notes - Lecture 2: Another Woman, Cohort Study, Clinical Trial

• School: Western University
• Department: Foods and Nutrition
• Course: Foods and Nutrition 1021
• Professor: Anita Cramp

Document Summary

Nutrition unit 2-general principles of research in nutrition. Objectives: describe types of studies used in establishing the role of diet in disease and their advantages and disadvantages. Intervention studies: based on an experimental design used in all areas of science, commonly known as randomized controlled trials (rcts), used for testing new drugs, volunteers are instructed on changes they must make to their diet. Typically, there are two groups: an intervention group and a control group. The intervention group is instructed to make a single dietary change. The members of the control group continue with their regular diet. After an appropriate period of time, the two groups are compared. Any differences between the groups should be the result of the single intervention. Intervention studies use a control group to ensure that it is actually the treatment under study that is causing any observed change in the disease factor and nothing else.