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May 1982

Lack of Lactobezoars in Infants Given Predominantly Whey Protein Formulas

Author Affiliations

From the Departments of Pediatrics (Drs Schreiner and Lemons) and Nutrition and Dietetics (Mss Brady and Ernst), and the Section of Neonatal-Perinatal Medicine (Drs Schreiner and Lemons), Indiana University School of Medicine, Indianapolis.

Am J Dis Child. 1982;136(5):437-439. doi:10.1001/archpedi.1982.03970410055012

• Lactobezoars have been reported with increasing frequency in low-birth-weight infants. The etiology of a lactobezoar is not well understood and is probably multifactorial. During a 2½-year period, 29 of 442 infants weighing less than 2,000 g who were fed casein-predominant formulas had lactobezoars. During the subsequent 14-month period, 223 infants weighing less than 2,000 g were fed a whey-predominant formula, and none had lactobezoars. There have been no reports of lactobezoars in infants fed human milk or whey-predominant formulas. It would appear that the presence of casein as the predominant protein is necessary for the development of a lactobezoar.

(Am J Dis Child 1982;136:437-439)