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Am J Clin Nutr. 1984 Aug;40(2):317-24.

Effect of pantothenic acid status on the content of the vitamin in human milk.


Seventeen lactating women who delivered preterm infants (between 28 to 34 wk of gestational age) and 26 nursing mothers of term infants participated in the study. Each term mother kept a record of 2-day dietary intakes, collected urines for 2 days, and provided fore and hind milk samples and a fasting blood sample at 2 and 12 wk postpartum. Each of preterm women provided fore and hind milk samples once a week for 16 wk starting 2 wk postpartum. The method of determining pantothenic acid content in milk samples was validated, and the vitamin was quantitated by the radioimmunoassay. The average pantothenate levels in fore and hind samples of preterm milk (3.31 and 3.72 micrograms/ml, respectively) were significantly (p less than 0.05) higher than those of term milk (2.64 and 2.48 micrograms/ml, respectively). No significant change was observed in pantothenic acid content within a feeding or with the progress of nursing in both groups. The vitamin content of human milk was compared with the minimum requirement of the Infant Formula Act of 1980. The pantothenate level in term milk was significantly (p less than 0.05) correlated with the vitamin level in maternal circulation and with that of the dietary intake and urinary excretion.

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