DS (13 weeks) has been exclusively FF since 1 month due to supply issues. At that point he would take 45 min - 1 hour to finish a bottle. Shortly before 2 months he became VERY frustrated with his bottles and seemed to be straining to get more, so I switched him to Dr. Brown's Level 2 nipples (medium flow) and he started taking his bottles in 35-45 minutes.
Now we are just past 3 months and he is still taking 45 minutes or so for each bottle, which, from reading other posts seems on the long side. He drinks about 5.5-6.5 ounces in each bottle and sometimes seems to strain for more, but I am hesitant to move up to Level 3 as it is labeled for 6 months +.
How long does it take your LO to finish a bottle?
How many ounces do they eat in each bottle on average?