Super-Size Soda Ban Could Fizzle, Study Suggests
But the research didn't involve actual consumers or beverages
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It's not clear how much actual extra profit restaurants could make, however.
Wilson dismissed the prospect that his study was giving restaurants ideas about how to bypass the super-size ban. "It's good for policymakers to know about any unintended consequences and think about them now," he said.
Barbara Jean Rolls, chair of nutritional studies at Penn State University, said the study findings are "provocative" but lack a real-life component because they didn't involve an actual restaurant or actual drinks. (Wilson said that's the next step for future research.)
"Human eating and drinking behavior is very complex," Rolls said. "A lot of studies indicate that what you say on paper isn't what you're going to do [in real life]. I don't think just asking people on paper is going to tell us how this will play out."
The study was published online April 10 in the journal PLoS One.