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Clinical Trial
. 2014 Feb;22(2):318-24.
doi: 10.1002/oby.20589. Epub 2013 Sep 23.

Assessment of satiety depends on the energy density and portion size of the test meal

Rachel A Williams  1 , Liane S Roe, Barbara J Rolls
Affiliations
Clinical Trial

Assessment of satiety depends on the energy density and portion size of the test meal

Rachel A Williams et al. Obesity (Silver Spring). 2014 Feb.

Abstract

Objective: Foods that enhance satiety can reduce overconsumption, but the availability of large portions of energy-dense foods may counter their benefits. The influence on meal energy intake of varying the energy density and portion size of food consumed after a preload shown to promote satiety was tested.

Design and methods: In a crossover design, 46 women were served lunch on six days. On four days they ate a compulsory salad (300 g, 0.33 kcal/g). Unlike previous studies, instead of varying the preload, the subsequent test meal of pasta was varied between standard and increased levels of both energy density (1.25 or 1.66 kcal/g) and portion size (450 or 600 g). On two control days a salad was not served.

Results: Following the salad, the energy density and portion size of the test meal independently affected meal energy intake (both P < 0.02). Serving the higher-energy-dense pasta increased test meal intake by 153 ± 19 kcal and serving the larger portion of pasta increased test meal intake by 40 ± 16 kcal. Compared to having no salad, consuming the salad decreased test meal intake by 123 ± 18 kcal.

Conclusions: The effect of satiety-enhancing foods can be influenced by the energy density and portion size of other foods at the meal.

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Figures

FIGURE 1
FIGURE 1
Mean (±SEM) energy intakes of 46 women who were served a test meal of pasta that was varied between 100% and 133% levels of both energy density (ED) and portion size, following a preload of salad that was not varied. Energy intakes at the test meal and at the entire lunch (salad + pasta) were independently increased by increases in the ED (p<0.0001) or portion size (p<0.02) of the pasta.
FIGURE 2
FIGURE 2
Mean (±SEM) energy intakes of 46 women who were served lunch meals that varied in the provision of the salad preload and included the same pasta test meal (600 g of either the 1.25 kcal/g version or the 1.66 kcal/g version). Consumption of the salad reduced test meal energy intake (p<0.0001) but did not significantly affect total lunch (salad + pasta) energy intake.
See this image and copyright information in PMC

References

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