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Why Might Food Frequency Questionnaires Be Less Accurate Than 24-Hour

Question 38

Multiple Choice

Why might food frequency questionnaires be less accurate than 24-hour recalls? ​


A) There can be too many or too few foods to choose from.
B) Dietary supplements can't be included.
C) They typically list only common foods.
D) It may be difficult to estimate average portion sizes of foods eaten less frequently.

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