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Serum carotenoid in relation to the infant’s age. During the study, the formula-fed infants (n=8) had decreasing serum carotenoids frombirth to 9 weeks of age (P<0.04, repeatedmeasures analysis of variance). The human milk-fed infants (n=32) had no change in their serum levels during the study. In the human milk-fed group, the serum carotenoid concentrations were higher than the formula-fed group at certain time points (P<0.05).
