The term failure to imbibe is proposed to describe infants with failur
e to thrive due to poor feeding. Feeding assessment was performed in 1
28 patients: 43 healthy controls, 53 diseased controls, 12 with nonorg
anic failure to thrive, and 20 with failure to imbibe. Infants with fa
ilure to imbibe required a significantly longer time to feed compared
with other infants. In contrast to other infants with nonorganic failu
re to thrive, patients with failure to imbibe were more likely to need
pediatric subspecialty care and nasogastric or gastrostomy tube feedi
ng. Since these patients may have treatable conditions, infants with f
ailure to imbibe merit further investigation.