What is it called when someone is extremely picky?
                                
                                
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                                    4 min read                                
                            
                                According to a study published in the National Institutes of Health, adult picky eating is associated with elevated psychosocial impairment and limited dietary variety. The term used to describe a person who is extremely picky varies depending on the context, from common adjectives like 'fastidious' or 'finicky' to a more serious clinical diagnosis.