In 2005, Wansink's lab published experimental findings in a paper called "Bottomless bowls: why visual cues of portion size may influence intake". Another of his papers found that people who eat with someone who is fat will make worse food choices, which the UK National Health Service described as "not wholly convincing and does not prove this phenomenon exists in the general population." Some of his work led to the introduction of mini-size packaging. Wansink's research focused on ways people make choices-for example, how portion sizes affect food intake. He set up a nonprofit foundation to support his work in 1999. He then taught at the Wharton Graduate School of Business at the University of Pennsylvania (1995–1997) and went on to a position as a marketing, nutritional science, advertising, and agricultural economics professor at the University of Illinois at Urbana-Champaign (1997–2005) before moving to the Department of Applied Economics and Management in the College of Agriculture and Life Sciences at Cornell University in 2005. Wansink's first academic appointment was to the faculty of the Tuck School of Business at Dartmouth College (1990–1994). Ĭornell Food and Brand Lab outreach Professorships On September 20, 2018, Cornell determined that Wansink had committed scientific misconduct and removed him from research and teaching activities he resigned effective June 30, 2019. Seven other papers have received an expression of concern, and 15 others have been corrected. As of 2020 Wansink has had 18 of his research papers retracted (one twice). These problems included conclusions not supported by the data presented, data and figures duplicated across papers, questionable data (including impossible values), incorrect and inappropriate statistical analyses, and " p-hacking". Starting in 2017, problems with Wansink's papers and presentations were brought to wider public scrutiny. Wansink's lab researched people's food choices and ways to improve those choices.
Dyson Endowed Chair in the Applied Economics and Management Department at Cornell University, where he directed the Cornell Food and Brand Lab.
He is the former executive director of the USDA's Center for Nutrition Policy and Promotion ( CNPP) (2007–2009) and held the John S. Cornell University, University of Pennsylvania, Dartmouth College, University of Illinois at Urbana-Champaignīrian Wansink is a former American professor and researcher who worked in consumer behavior and marketing research.
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