TABLE 1-1 Overview of Major Federal and Private-Sector Surveys on Food Consumption, Food Purchases by Consumers, and Food Sales in Stores

Type of Survey

Food Consumption (Intake) Surveys


National Eating Trends (NET)

National Health and Nutrition Examination Survey (NHANES)


NPD Group



Food intake by individuals from 2-week diary; socioeconomic characteristics of all household members; where food purchased and eaten

Food intake by sampled persons from 24-hour recall for 2 nonconsecutive days beginning 2002 (first in-person, second by phone); household characteristics; food assistance program participation; socioeconomic characteristics, where food eaten, and detailed health measures from medical tests and examinations for sampled persons


Nationally representative; 2,000 households sent diaries each year

Nationally representative; some groups oversampled; 5,000 people examined each year

Frequency and Timeliness

Ongoing panel; 3-month lag between collection and release

Continuing since 1999; released approximately every 2 years with 2-year lag from collection; 2001-02 available (does not include day 2 of dietary intake)

Response Rate (approximate)

Not available

82 percent of eligible sample persons interviewed; 76 percent examined (1999-2000 round)

NOTE: For more information on NHANES, CSFII, and DHKS, see Chapter 2; for NET, see Chapter 3.

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