Document Detail


Assessing dietary intake: Who, what and why of under-reporting.
MedLine Citation:
PMID:  19094249     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Under-reporting of food intake is one of the fundamental obstacles preventing the collection of accurate habitual dietary intake data. The prevalence of under-reporting in large nutritional surveys ranges from 18 to 54% of the whole sample, but can be as high as 70% in particular subgroups. This wide variation between studies is partly due to different criteria used to identify under-reporters and also to non-uniformity of under-reporting across populations. The most consistent differences found are between men and women and between groups differing in body mass index. Women are more likely to under-report than men, and under-reporting is more common among overweight and obese individuals. Other associated characteristics, for which there is less consistent evidence, include age, smoking habits, level of education, social class, physical activity and dietary restraint. Determining whether under-reporting is specific to macronutrients or food is problematic, as most methods identify only low energy intakes. Studies that have attempted to measure under-reporting specific to macronutrients express nutrients as percentage of energy and have tended to find carbohydrate under-reported and protein over-reported. However, care must be taken when interpreting these results, especially when data are expressed as percentages. A logical conclusion is that food items with a negative health image (e.g. cakes, sweets, confectionery) are more likely to be under-reported, whereas those with a positive health image are more likely to be over-reported (e.g. fruits and vegetables). This also suggests that dietary fat is likely to be under-reported. However, it is necessary to distinguish between under-reporting and genuine under-eating for the duration of data collection. The key to understanding this problem, but one that has been widely neglected, concerns the processes that cause people to under-report their food intakes. The little work that has been done has simply confirmed the complexity of this issue. The importance of obtaining accurate estimates of habitual dietary intakes so as to assess health correlates of food consumption can be contrasted with the poor quality of data collected. This phenomenon should be considered a priority research area. Moreover, misreporting is not simply a nutritionist's problem, but requires a multidisciplinary approach (including psychology, sociology and physiology) to advance the understanding of under-reporting in dietary intake studies.
Authors:
J Macdiarmid; J Blundell
Related Documents :
8906629 - Intake ratio of water-insoluble dietary fiber to the water-soluble one in japanese: an ...
11918489 - Spanish food patterns.
18608629 - Association between television viewing and poor diet quality in young children.
20374789 - Biomarkers of meat intake and the application of nutrigenomics.
12001009 - Ten-year trends of dietary intake in a middle-aged french population: relationship with...
16407729 - Fiber and cardiovascular disease risk: how strong is the evidence?
24399099 - Introducing solid foods to infants in the asia pacific region.
20022649 - Effects of chitosan films on the growth of listeria monocytogenes, staphylococcus aureu...
24530859 - Subchronic toxicity evaluation of γ-aminobutyric acid (gaba) in rats.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Nutrition research reviews     Volume:  11     ISSN:  0954-4224     ISO Abbreviation:  Nutr Res Rev     Publication Date:  1998 Dec 
Date Detail:
Created Date:  2008-12-19     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9113797     Medline TA:  Nutr Res Rev     Country:  England    
Other Details:
Languages:  eng     Pagination:  231-53     Citation Subset:  -    
Affiliation:
Bio Psychology Group, School of Psychology, University of Leeds, Leeds LS2 9JT, UK. JIM@rri.sari.ac.uk
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Does the study of feeding behaviour benefit from a teleonomic framework?
Next Document:  Lipids and infant formulas.