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Can dietary intake influence perception of and measured appearance? A systematic review : dietary intake and appearance

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pezdirc2014NutritionRes_accepted.pdf (1.075Mb)
Date
03/2015
Author
Pezdirc, Kristine
Hutchesson, Melinda
Whitehead, Ross David
Ozakinci, Gozde
Perrett, David Ian
Collins, Clare
Keywords
Diet
Appearance
Fruit
Vegetables
Skin
R Medicine
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Abstract
Appearance-based interventions have had some success in reducing smoking and sun exposure. Appearance may also motivate dietary behavior change if it was established that dietary improvement had a positive impact on appearance. The aims of this review are to evaluate the current evidence examining the relationship between dietary intake and appearance and to determine the effectiveness of dietary interventions on perceived or actual appearance. An electronic search of English language studies up to August 2012 was conducted using Cochrane, MEDLINE, Embase, CINAHL, Web of Science, SCOPUS and PsycINFO databases. Studies that included participants aged ≥ 18 years, that observed or altered dietary intake from actual food or dietary supplement use and assessed appearance-related outcomes were considered eligible. Data from 27 studies were extracted and assessed for quality using standardized tools. Nineteen studies were assessed as being of “positive” and four of “neutral” quality. All observational studies (n = 4741 participants) indicated that there was a significant association between various aspects of dietary intake and skin coloration and skin aging. The majority (16 studies, 769 participants) evaluated the effect of dietary supplements on skin appearance amongst females. Only one study examined the effect of actual food intake on appearance. Significant improvements in at least one actual or perceived appearance-related outcome (facial wrinkling, skin elasticity, roughness and skin color) following dietary intervention were shown as a result of supplementation. Further studies are needed in representative populations that examine actual food intake on appearance, using validated tools in a well-designed high quality RCTs.
Citation
Pezdirc , K , Hutchesson , M , Whitehead , R D , Ozakinci , G , Perrett , D I & Collins , C 2015 , ' Can dietary intake influence perception of and measured appearance? A systematic review : dietary intake and appearance ' , Nutrition Research , vol. 35 , no. 3 , pp. 175-197 . https://doi.org/10.1016/j.nutres.2014.12.002
Publication
Nutrition Research
Status
Peer reviewed
DOI
https://doi.org/10.1016/j.nutres.2014.12.002
ISSN
1879-0793
Type
Journal item
Rights
© 2014. Elsevier Inc. All rights reserved. This is the author’s version of a work that was accepted for publication in Nutrition Research. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Nutrition Research, 35, 3, March 2015 DOI 10.1016/j.nutres.2014.12.002
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/7951

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