How many people can't stand the texture of fish, can only stomach grilled chicken or refuse to eat their vegetables?
Scientists at Duke University in North Carolina are compiling the first global registry of "picky eaters" in the hope of discovering why some people have trouble with food.
They believe it may help find a genetic reason for some eaters' intense dislike of certain foods, like broccoli, or beans with a "fuzzy" texture.
They note some eaters' pickiness is so deep-seated it interferes with their jobs, their relationships and their social lives.
"This is an area that is vastly under-explored," says Dr Nancy Zucker, director of the Duke University Center for Eating Disorders.
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