Re: can oversupply = overfeeding?
You can't overfeed. As long as you're nursing on demand, you aren't in charge of the feeding. The baby is. She nurses until she feel satiated, and then she stops. This is totally different from the way bottlefed babies eat, because when a baby feeds from a bottle, it's the adult at the other end of the bottle who is in charge. Even the most sensitive bottle-feeding adult will sometimes tip the bottle up to get baby to drink a little faster, or slip the bottle back into the baby's mouth so that the baby will "finish" the feeding, resulting in the baby taking in more milk, and taking it in faster, than she naturally would have. That's overfeeding.
Coolest thing my big girl said recently: "How can you tell the world is moving when you are standing on it?"
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