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Innovative method to collect and analyze dietary intake data using still photographs
Author(s) -
Humphries Kathleen,
Pepper Alison C.,
Seekins Tom W.
Publication year - 2009
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.23.1_supplement.223.3
Subject(s) - meal , reliability (semiconductor) , calorie , food group , environmental health , statistics , food science , medicine , mathematics , biology , power (physics) , physics , quantum mechanics , endocrinology
Visual imaging technologies open doors to new ways of collecting and analyzing dietary intake information. Currently digital images are used entrepreneurially, and to a minor degree in research. However, validity of the nutrient analyses is lacking and standardized training for photo interpreters needed. We show evaluation data from our RD training program on the dietary intake method, the photo taking and analysis protocols, and validity data from a recent study. Thirty‐two RD raters interpreted and analyzed a reliability series of 30 test meals. Their analyses at the food group level were compared to known meal contents. RD ratings were not clinically different for meal content or quantities for any food group. Mean differences between measured food amounts and RD reported amounts were: grains, .18 serving; vegetables, .64 serving; fruit, .01 serving; dairy, .10 serving; protein, .14 serving; discretionary calories, .11 serving.