03 November 2009

Tomato soup

In 2005, Brian Wansink et al. administered a novel experiment to determine the effect of outside stimuli on satiation:

Wansink's research on bottomless bowls of creamy tomato soup (hidden tubes imperceptibly keep refilling them) won [a 2007 Ig Nobel prize] in the nutrition category. [...]

The research, published as a featured article in the journal Obesity Research in 2005, showed that people eating from soup bowls that don't empty ate 73 percent more soup than those eating from normal bowls, said Wansink.

(Source: Cornell University news)

When presented with a cornucopia of soup, most subjects were completely oblivious:

[We] brought 62 people in for a free soup lunch [...] we found that those with refillable bowls ate 73% more soup, but did not feel any more full [...] Only 2 individuals ever realized [what] was happening.

(Source: mindlesseating.org)

I always found this kind of incredible, the fact that a bottomless bowl of tomato soup could go unnoticed, until I realized:

Tomato soup is freakin' delicious. I am pretty sure I could have tomato soup at breakfast, lunch, and dinner every day this winter.

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