What dietary assessment methods were used in the 2008/09 National Nutrition Survey?

Question

BlackTom AI · Accepted Answer

To begin, let's restate the question and all answer choices in clear terms so we can evaluate them methodically.
Question: What dietary assessment methods were used in the 2008/09 National Nutrition Survey?
Options:
a. Diet record and food habits questionnaire
b. 24 hour recall and food habits questionnaire
c. 24 hour recall and food record
d. Diet history and direct observation

Now, consider each option:
Option a: Diet record and food habits questionnaire. A diet record (or food diary) involves participants recording everything they eat over a set period, which is a specific method. The combination here pairs diet records with a food habits questionnaire, which could be plausible in some surveys, but our provided answer indicates a different pairing was used in the 2008/09 National Nutrition Survey, so this option mismatches the documented methods.
Option b: 24 hour recall and food habits questionnaire. This pairing combines a 24-hour recall (a common short-term intake assessment asking respondents to recall everything consumed in the previous day) with a food habits questionnaire (often used to capture habitual eating patterns). This combination aligns with typical survey designs and matches the specified correct answer in the given data, suggesting it reflects the actual methods used.
Option c: 24 hour recall and food record. Here we have a 24-hour recall paired with a food record, which is less commonly combined in a single large national survey, and it differs from the stated correct pairing. If the survey used a food habits questionnaire rather than a full food record alongside the recall, this option would be inaccurate.
Option d: Diet history and direct observation. Diet history is a retrospective method collecting long-term intake from memory, while direct observation involves watching participants eat, which is resource-intensive and unlikely to be used together for a national survey of this scale. This combination does not fit typical national nutrition survey methodologies and is not supported by the provided answer.

In sum, option b matches the given correct answer and describes a plausible, widely-used combination of dietary assessment methods (a 24-hour recall plus a food habits questionnaire) for a national nutrition survey. The other options propose combinations that either conflict with the stated correct pairing or rely on methods less compatible with large-scale survey design, making them less likely choices given the context.

What dietary assessment methods were used in the 2008/09 National Nutrition Survey?

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