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Data from study of nine normal full-term infants fed a soy isolate-based formula unsupplemented with methionine were compared with similar data from study of 10 similar infants fed the same formula supplemented with L-methionine and with data from previous studies of larger groups of infants receiving various other feedings. Food intake, growth, and serum chemical values were studied from 8 through 111 days of age. In addition, nitrogen balance studies were carried out. Statistically significant differences were as follows: lesser weight gain per 100 kcal by infants fed the unsupplemented soy isolate-based formula than by infants fed milk-based or other soy isolate-based formulas; lesser serum concentrations of albumin at age 28 days by infants fed the unsupplemented soy isolate-based formula than by breast-fed infants; greater serum concentrations of urea nitrogen by infants receiving the unsupplemented soy isolate-based formula than by those receiving the same formula supplemented with L-methionine. A number of other differences was noted but were not statistically significant. The results suggest that normal infants fed a formula providing 2.25 /100 kcal of a soy protein isolate not fortified with methionine performed less well during the first 6 weeks of life than did breast-fed infants and infants fed milk-based formulas or other soy isolate-based formulas fortified with methionine. The limiting nutrient appears to have been methionine.
S J Fomon, and
E E Ziegler, and
L J Filer, and
S E Nelson, and
B B Edwards
January 1995,
The American journal of clinical nutrition,
S J Fomon, and
E E Ziegler, and
L J Filer, and
S E Nelson, and
B B Edwards
January 1990,
Biology of the neonate,
S J Fomon, and
E E Ziegler, and
L J Filer, and
S E Nelson, and
B B Edwards
February 2010,
The Journal of pediatrics,
S J Fomon, and
E E Ziegler, and
L J Filer, and
S E Nelson, and
B B Edwards
July 1988,
The Journal of pediatrics,
S J Fomon, and
E E Ziegler, and
L J Filer, and
S E Nelson, and
B B Edwards
January 2005,
Neurotoxicology and teratology,
S J Fomon, and
E E Ziegler, and
L J Filer, and
S E Nelson, and
B B Edwards
June 2005,
Clinical pediatrics,
S J Fomon, and
E E Ziegler, and
L J Filer, and
S E Nelson, and
B B Edwards
June 2012,
Pediatrics,
S J Fomon, and
E E Ziegler, and
L J Filer, and
S E Nelson, and
B B Edwards
April 1980,
The Journal of pediatrics,
S J Fomon, and
E E Ziegler, and
L J Filer, and
S E Nelson, and
B B Edwards
May 1993,
The Journal of pediatrics,
S J Fomon, and
E E Ziegler, and
L J Filer, and
S E Nelson, and
B B Edwards
January 2008,
American family physician,
