Question

1) What are the reasons for measuring dietary intake? 2) How can the characteristics of study participants affect the selection of a 3) Describe the following dietary assessment techniques explaining their wea a) 24-Hour Recall b) Food Record c) Food Frequency Questionnaires d) Diet History e) Duplicate Food Collections f) Food Accounts g) Food Balance Sheets h) Telephone Interviews i) Photographic and Video Records 4) Describe the use of biological markers to validate methods of dietary intake assess 5) Discuss the sources of variation between actual dietary intake and that measured by methods. a) Differences between usual diet and that measured in the study b) Assessment method c) Respondent d) Observer

Answer 1

1).

Measuring dietary intake includes, determining the type and amount of food consumed. The nutritional composition of the foods is also assessed. The purpose of measuring dietary intake is given below:

• To determine the relationship between diet and disease
• It serves as a guide to the amount of energy and nutrients available for metabolism
• They provide an appropriate way of food intake at the group and individual level
• It helps to improve the overall human health
• Nutritional data serves as a critical source of investigation for deaths stemming from nutritional problems in developed nations
• Identifying the groups that are at risk of nutritional imbalances
• Developing food and nutrition policies for the prevention of nutritional diseases and promoting the health