Answer to Question 1
3
Rationale: DRI values can be confusing to health-care personnel because they specify levels of nutrients rather than food choices. The recommendations are intended for use with healthy individuals. Five variables must be accommodated in order to successfully translate population suggestion into food choices for an individual: age, body size, daily energy expenditure, any relevant medical conditions, and dietary habits. DRI values are intended as general guidelines for a population group rather than an individual.
Answer to Question 2
D
Incomplete protein contains inadequate amounts of one or more essential amino acids. It still has nutritional value and may be combined with another incomplete protein to provide complete protein. Incomplete proteins are found mostly in plant foods. Denaturing proteins does not affect their amino acids content and make them incomplete.