Even just changing the color of the tablecloth, picking one that contrasts your dinner plate, can reduce the amount you serve by 10 percent. Contrasting sauce-plate color combos reduced serving size by as much as 21 percent. Interestingly enough, during the same study, researchers asked participants to serve white-sauce or red-sauce pasta on either a large white or a large red plate. The other is to be conscious of the color of your food and your plate. Follow-up studies showed that the “bowl bias” is nearly impossible to eliminate, no matter how much education or awareness we have.ĭoes this mean we are destined to eat from salad plates for the rest of our lives? Well, that’s one way to reduce portion size. Given the fact that the average size of dinner plates has increased by almost 23 percent since 1900 and obesity rates have more than doubled in the last 30 years, the correlation makes sense, right?īut if you think you can get around this optical illusion by simply reminding yourself to take less food, the researchers say you can’t. In fact, participants dished out up to 31 percent more soup. On bigger plates, however, we tend to serve more. On smaller plates, we tend to serve ourselves less food, and thus, eat less. Why? Because a serving size can look larger than it actually is depending on your choice of dinnerware. Consistent with what we learned in science class, participants poured less into the smaller bowls and more into the larger ones.
of Cornell University) asked 225 people to pour a specified amount of tomato soup into different sized bowls. from Georgia Institute of Technology and Brian Wansink, Ph.D. In a new study published in the Journal of Consumer Research, researchers (Koert van Ittersum, Ph.D.
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