Mary Roach Quote

Another strategy was to target kids. The human infant enters the world without information about what is edible and what is not, wrote psychologist Paul Rozin, who studied disgust for many years at the University of Pennsylvania. Until kids are around two, you can get them to try pretty much anything, and Rozin did. In one memorable study, he tallied the percentage of children aged sixteen to twenty-nine months who ate or tasted the following items presented to them on a plate: fish eggs (60 percent), dish soap (79 percent), cookies topped with ketchup (94 percent), a dead (sterilized) grasshopper (30 percent), and artfully coiled peanut butter scented with Limburger cheese and presented as dog-doo (55 percent). The lowest-ranked item, at 15 percent acceptance, was a human hair.* By the time children are ten years old, generally speaking, they’ve learned to eat like the people around them.

Mary Roach

Another strategy was to target kids. The human infant enters the world without information about what is edible and what is not, wrote psychologist Paul Rozin, who studied disgust for many years at the University of Pennsylvania. Until kids are around two, you can get them to try pretty much anything, and Rozin did. In one memorable study, he tallied the percentage of children aged sixteen to twenty-nine months who ate or tasted the following items presented to them on a plate: fish eggs (60 percent), dish soap (79 percent), cookies topped with ketchup (94 percent), a dead (sterilized) grasshopper (30 percent), and artfully coiled peanut butter scented with Limburger cheese and presented as dog-doo (55 percent). The lowest-ranked item, at 15 percent acceptance, was a human hair.* By the time children are ten years old, generally speaking, they’ve learned to eat like the people around them.

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About Mary Roach

Mary Roach (born March 20, 1959) is an American author specializing in popular science and humor. She has published seven New York Times bestsellers: Stiff: The Curious Lives of Human Cadavers (2003), Spook: Science Tackles the Afterlife (2005), Bonk: The Curious Coupling of Science and Sex (2008), Packing for Mars: The Curious Science of Life in the Void (2010), Gulp: Adventures on the Alimentary Canal (2013), Grunt: The Curious Science of Humans at War (2016), and Fuzz: When Nature Breaks the Law (2021).