Hi Carmen
We use mls not oz, so not sure about how much that is. Hayden drank between 40 and 100ml at this age which my bottle shows is about 1.2 to about 3.3 fluid oz. But he was BF first, then had a formula top up (which is the amounts given) and was having about 8 - 10 feeds a day. I used top up feeds as Hayden wasn't gaining (any) weight. HTH.
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