If they want the latest Steven Seagal movie or a Kit Kat bar, they'll have to get off the couch and get it themselves.

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Aside from the generous 2 percent of the recommended daily allowance of iron in a Kit Kat bar, and 1 percent vitamin A, candy is largely devoid of nutrients and constitutes empty calories.

MSN: Let Kids Gorge on Halloween Candy, Dentists Say

An activity spike in the left prefrontal cortex--an "approach" response to the image of a Kit Kat chocolate bar--would suggest the subject is attracted to the brand image or message.

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