FFQ
The Food Frequency Questionnaire is a self-administered dietary assessment tool designed to measure habitual food and nutrient intake over an extended period (typically 6–12 months). Developed by epidemiologists, particularly Walter Willett at Harvard, the FFQ has become a cornerstone of nutritional epidemiology research, enabling large-scale studies to assess dietary patterns and examine diet-disease relationships. FFQs vary in length (50–200+ items) and focus, but all share the purpose of estimating average dietary intake in a time-efficient manner suitable for population studies.
Source record
Citations copied verbatim from the method’s source record. No claim-level verification is inferred from them.
- Willett, W. C. (1998). Nutritional Epidemiology (2nd ed.). Oxford University Press. · DOI 10.1093/acprof:oso/9780195122978.001.0001
- Subar, A. F., Freedman, M. R., Tooze, J. A., et al. (2015). Addressing current criticism regarding the value of food frequency questionnaires. The Journal of Nutrition, 145(12), 2639-2645. · URL
Curated claims
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Related methods
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