[Food photography atlas: its suitability for quantifying food and nutrient consumption in nutritional epidemiological research in Córdoba, Argentina].
Food pictures are suitable visual tools for quantize food and nutrient consumption avoiding bias due to self-assessments.


OBJECTIVE
To determine the perception of food portion size and to establish the efficacy of food pictures for dietaries assessments.


METHODS
A food frequency questionnaire (FFQ) including 118 food items of daily consumption was applied to 30 adults representative of Córdoba, Argentina, population. Among several food models (paper maché, plastics) and pictures, those which more accurately filled the purpose were selected. 3 small, median and large standard portion size were determined. Data were evaluated with descriptive statistics tools and Chi square adherence test.


RESULTS
The assessment of 51 percent of the food was assayed in concordance with the reference size. In general, the remainder was overestimated. The 90 percent of volunteers concluded that the pictures were the best visual resource.


CONCLUSIONS
The photographic atlas of food is an useful material for quantize the dietary consumption, suitable for many types of dietaries assessments. In conclusion, comparison among pictures of three portions previously standardized for each food is highly recommendable.
Navarro
A
A
Escuela de Nutrición, Fac. Cs. Médicas, U.N.C.
Cristaldo
P E
PE
Díaz
M P
MP
Eynard
A R
AR
D000328:Adult; D001118:Argentina; D016009:Chi-Square Distribution; D004034:Diet Surveys; D005502:Food; D006801:Humans; D008297:Male; D008875:Middle Aged; D010781:Photography; D010865:Pilot Projects; D012015:Reference Standards; D012858:Size Perception; D011795:Surveys and Questionnaires