Premium
Use of duplicate plate collection to evaluate self‐reported calcium intake among adult women
Author(s) -
Yang Jimin,
Boushey Carol
Publication year - 2008
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.22.1_supplement.159.3
Subject(s) - calcium , food science , nutrient , low calcium , orange juice , zoology , dietary reference intake , medicine , food frequency questionnaire , environmental health , chemistry , biology , organic chemistry
Calcium has been voluntarily added to a variety of food products. However, dietary assessment methods may be limited in capturing calcium intake from fortified foods. The objective of this study was to compare self‐reported calcium intakes using food records (FR) with duplicate plate collection (DPC), an objective measure of nutrient intake. During a 5‐week study period, 50 Asian, Hispanic, or non‐Hispanic White women completed 2 consecutive days of FR twice at least 7 days apart. The DPC was randomly assigned to either occurrence of the FR. The Nutrient Data System for Research?was used to calculate calcium intake from FR. Homogenized samples of collected food were analyzed with a spectrometer for calcium. Out of 1072 foods recorded, eight were identified as calcium‐fortified based on FR description. Calcium‐fortified orange juice was specified by 7 participants. Twenty participants recorded at least one type of calcium‐fortified food at least once over the study period. The calcium content in DPC (985±445mg) was statistically equivalent to the average intake estimated from FR (983±404mg, p =0.972). This strong match between the DPC and FR was consistent with the collected foods being correctly described in the FR. Given adequate motivation and attention from the participants and the use of a comprehensive nutrient database, self‐reported intakes may match with objective measure of calcium intake.