Portion Size Me
All consumers are subject to
portion size unawareness.
Wansink, Brian and Koert van Ittersum (2007), “Portion
Size Me: Downsizing Our Consumption Norms,” Journal of
the American Dietetic Association, 107:7 (July), 1103-1106.
Do I really need to be aware of
portion sizes?
Portion size is no respecter of person, place or profession
or if the person is hungry or likes the food.
85 graduate students and professors were invited to an ice cream social.
Those who were given larger serving bowl served themselves 31% more
then those with the smaller bowl. Those who were given a larger bowl and
serving utensil served themselves 53% ice cream then those who were
given a small bowl and spoon.
Chicagoan moviegoers were given free medium or large buckets of
stale popcorn. Even though the popcorn was stale and they were
not hungry, those who were given the large bucket were ate 51%
more then those with the medium buckets.
Wansink, Brian and Koert van Ittersum (2007), “Portion Size Me: Downsizing Our
Consumption Norms,” Journal of the American Dietetic Association, 107:7 (July),
1103-1106.
Who creates portion size norms?
Larger packages, larger restaurant portions, larger
kitchenware suggest a consumption norm that
subtly influences how much people believe is
appropriate to eat.
Wansink, Brian and Koert van Ittersum (2007), “Portion Size Me: Downsizing Our
Consumption Norms,” Journal of the American Dietetic Association, 107:7 (July),
1103-1106.
Reversing portion size norms
-Buy items in smaller serving sizes.
-If purchasing items bargain-sized, re-portion food items into
serving sizes
-At a restaurant ask for half your order to be placed to-go.
-At home replace large dishware with smaller dishware.
-Keep large food containers and packages off the counter
Large portions lead to supersized appetites.
Smaller portions lead to smaller appetites.
Change your personal environment to chane
your behavior.
Wansink, Brian and Koert van Ittersum (2007), “Portion Size Me:
Downsizing Our Consumption Norms,” Journal of the American Dietetic
Association, 107:7 (July), 1103-1106.
“Just for fun”
Wansink, Brian and Koert van Ittersum (2007), “Portion
Size Me: Downsizing Our Consumption Norms,” Journal of Created by: Annalise Shumway
the American Dietetic Association, 107:7 (July), 1103-1106.