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Edible Serving Size Markers Act As Subconscious Sign to Stop Eating


Photo: Robin Wishna

"Once you pop, you can’t stop" is Pringles’ motto and Brian
Wansink of Cornell University’s Food and Brand Lab (previously
on Neatorama) is doing something about it: edible serving size markers
can help act as subconscious sign to stop eating.

As part of an experiment carried out on two groups of college students
(98 students total) while they were watching video clips in class, researchers
from Cornell’s Food and Brand Lab served tubes of Lays Stackables, some
of which contained chips dyed red.

In the first study of the research, which is published online this
month in Health Psychology, a journal of the American Psychological
Association, the red chips were interspersed at intervals designating
one suggested serving size (seven chips) or two serving sizes (14 chips);
in the second study, this was changed to five and 10 chips.

Unaware of why some of the chips were red, the students who were
served those tubes of chips nonetheless consumed about 50 percent less
than their peers: 20 and 24 chips on average for the seven-chip and
14-chip segmented tubes, respectively, compared with 45 chips in the
control group; 14 and 16 chips for the five-chip and 10-chip segmented
tubes, compared with 35 chips in the control group.

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Date
May 21st, 2012

Author
Stranger to the World

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