College students were given one of two menus. One menu featured French fries, chicken nuggets and a baked potato; the other included those same items as well as a salad. 10% af the students exposed to the short menu ordered fries. While 33% of the students exposed to the longer menue (including salads) chose fries. Wow! The research suggests that the presence of healthy options on a menu can induce some diners to eat less healthily than they otherwise would. See also http://www.journals.uchicago.edu/doi/abs/10.1086/599219

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