Milk intakes and feeding patterns of breast-fed infants.

Age and weight were significantly correlated with intake of breast milk for completely but not for partially breast-fed infants (N = 22). The largest mean intakes of breast milk occurred in the early morning of the three days observed, although feedings showed an association with the interval since the previous feeding. Breast milk was the major source of food energy for all partially breast-fed infants, and intakes of breast milk in contiguous periods tended to be correlated. Intakes of protein and calcium averaged higher for partially breast-fed infants than for completely breast-fed infants. However, mean intakes of both groups were below the 1974 Recommended Dietary Allowances, although growth was within normal ranges.