Brian Wansink (born 1960, Sioux City, Iowa) is an American professor in the fields of marketing and nutritional science. He is best known for his work on food psychology and behavior, which largely focuses on how micro environments (supermarkets, packaging, homes, pantries, and tablescapes) influence what and how much people eat. Wansink holds the John S. Dyson Endowed Chair at Cornell University where he is Director of the Food and Brand Lab. He is the first author of over 100 academic articles and books, including the best-selling book Mindless Eating: Why We Eat More Than We Think (Bantam Dell 2006). Having been referred to as the "Sherlock Holmes of Food,"[1] Wansink and his Food and Brand Lab have been credited with improving the deeper scientific understanding of food eating and food shopping as well as the discovery of the 100 calorie packs and some simple everyday insights: A person will eat an average of 92% of any food they serve themselves.[2] The average person makes an excess of 250 decisions about food each day.[3] The Nutritional Gatekeeper of a home influences an estimated 72% of all of the food their family eats.[4] Because of visual illusions, people (even bartenders) pour 28% more liquid into a short wide glasses than tall ones.[5] 50% of the snack foods bought in bulk (such as at a warehouse club store) are eaten within 6 days of when it is purchased. [6]