期刊
PUBLIC HEALTH NUTRITION
卷 23, 期 8, 页码 1307-1319出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S1368980019004452
关键词
Whole grain; Whole grain food definition; Intake; Relevance; Healthgrain
Objective: To determine the impacts of using a whole grain food definition on measurement of whole grain intake compared with calculation of total grams of intake irrespective of the source. Design: The Australian whole grain database was expanded to identify foods that comply with the Healthgrain whole grain food definition (>= 30 % whole grains on a dry weight basis, whole grain ingredients exceeds refined grain and meeting accepted standards for healthy foods based on local regulations). Secondary analysis of the National Nutrition and Physical Activity Survey (NNPAS) 2011-2012 dietary intake data included calculation of whole grain intakes based on intake from foods complying with the Healthgrain definition. These were compared with intake values where grams of whole grain in any food had been included. Setting: Australia. Participants: Australians (>= 2 years) who participated in the NNPAS 2011-2012 (n 12 153). Results: Following expansion of the whole grain database, 214 of the 609 foods containing any amount of whole grain were compliant with the Healthgrain definition. Significant mean differences (all P < 0 center dot 05) of 2 center dot 84-6 center dot 25 g/d of whole grain intake (5 center dot 91-9 center dot 44 g/d energy adjusted) were found when applying the Healthgrain definition in comparison with values from foods containing any whole grain across all age groups. Conclusions: Application of a whole grain food definition has substantial impact on calculations of population whole grain intakes. While use of such definitions may prove beneficial in settings such as whole grain promotion, the underestimation of total intake may impact on identification of any associations between whole grain intake and health outcomes.
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