Generally, babies who are breastfed exclusively take in an average of 25 oz (750 ml) per day when they are between the ages of 1-6 months, a typical range of milk intake is 19-30 oz/day (570-900ml/day).
Most of my breastfeeding friends who are also career women tend to "tank" baby up in milk before bedtime. They would breastfeed baby when he or she is close to falling asleep. Apparently this keeps them full longer.
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