Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 486129
Title Reduced-Sodium Lunches Are Well-Accepted by Uninformed Consumers Over a 3-Week Period and Result in Decreased Daily Dietary Sodium Sodium Intakes: A Randomized Controlled Trial
Author(s) Janssen, A.M.; Kremer, S.; Stipriaan, W.L. van; Noort, M.W.J.; Vries, J.H.M. de; Temme, E.H.M.
Source Journal of the Academy of Nutrition and Dietetics 115 (2015)10. - ISSN 2212-2672 - p. 1614 - 1625.
DOI https://doi.org/10.1016/j.jand.2015.01.008
Department(s) Food, Health & Consumer Research
Global Nutrition
VLAG
Publication type Refereed Article in a scientific journal
Publication year 2015
Abstract Background Processed foods are major contributors to excessive sodium intake in Western populations. We investigated the effect of food reformulation on daily dietary sodium intake. Objective To determine whether uninformed consumers accept reduced-sodium lunches and to determine the effect of consuming reduced-sodium lunches on 24-hour urinary sodium excretion. Design A single-blind randomized controlled pretest-posttest design with two parallel treatment groups was used. Participants/setting Participants chose foods in an experimental real-life canteen setting at the Restaurant of the Future in Wageningen, the Netherlands, from May 16 until July 1, 2011. Intervention After a run-in period with regular foods for both groups, the intervention group (n=36) consumed foods with 29% to 61% sodium reduction (some were partially flavor compensated). The control group (n=38) continued consuming regular foods. Main outcome measures Outcomes for assessment of acceptance were the amount of foods consumed, energy and sodium intake, remembered food liking, and intensity of sensory aspects. Influence on daily dietary sodium intake was assessed by 24-hour urinary sodium excretion. Statistical analyses performed Between and within-subject comparisons were assessed by analysis of covariance. Results Energy intake and amount consumed of each food category per lunch remained similar for both groups. Compared with the control group, the intervention group’s sodium intake per lunch was significantly reduced by –1,093 mg (adjusted difference) (95% CI –1,285 to –901), equivalent to 43 mmol sodium. Remembered food liking, taste intensity, and saltiness were scored similarly for almost all of the reduced-sodium foods compared with the regular foods. After consuming reduced-sodium lunches, compared with the control group, intervention participants’ 24-hour urinary sodium excretion was significantly lower by –40 mEq (adjusted difference) (95% CI –63 to –16) than after consuming regular lunches, and this reflects a decreased daily sodium intake of 1 g. Conclusions Comparing the two treatment groups, consumption of reduced-sodium foods over a 3-week period was well accepted by the uninformed participants in an experimental real-life canteen setting. The reduced-sodium foods did not trigger compensation behavior during the remainder of the day in the intervention group compared with the control group, as reflected by 24-hour urinary sodium excretion. Therefore, offering reduced-sodium foods without explicitly informing consumers of the sodium reduction can contribute to daily sodium intake reduction.
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