Our girls were born at 30 weeks 3 days and they are about 9 1/2 mths and a little over 18lbs and at their 9 mth check up their pediatrician said that they will be on formula until 15mths which is a little past their original due date!
DD is a wee little thing - weighing just under 15lbs at her one year appt. We switched to whole milk at one year and haven't looked back. She didn't have a problem with the switch at all and she is drinking the same amount if not a little more.
My LO isn't on the standard growth chart yet (well, his noggin' is ha ha, but not his height or weight). He was IUGR, and they usually take longer to catch up. However, he is steadily gaining on his own projected growth curve.
My Dr. said he planned to put him on Soy milk at 12 months. We're on Alimentum now, and he's about 13.5 lbs @ 8 months (on Thursday).
Yes. They were roughly 17/18lbs at one year and the pedi was pleased with their weight so we went to whole milk. It was an easy transition for us, they LOVE the stuff.
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How early was your baby? I think that's the deciding factor, it seems that babies who were closer to full term can switch at actual age more than babies who were super early. We were 24 weekers and our doctors reccomended not introducing cow's milk until 1 year adj (15.5 months actual).
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DD went to fully WCM + dilute apple juice at 17m adjusted. Although DD is/was something like 85th centile for actual age, I kept her on formula because I felt she would benefit from the vitamins. Also, substituting the volume of formula for an equal volume of WCM would probably have made her anemic. We did a gradual wean.. introduced some WCM at about a year adjusted.
Eventually at 17m she decided she liked the taste of WCM more and wouldn't drink anymore FM. I would go follow your instincts on this one..assuming there's no pressing nutritional need to keep your baby on FM. There's really no hard and fast rule.
Re: Did your preemie stop formula at one year?
We'll miss you sweet Debbie Girl (4.21.12) and sweet Cindy Girl (8.9.12)

My LO isn't on the standard growth chart yet (well, his noggin' is ha ha, but not his height or weight). He was IUGR, and they usually take longer to catch up. However, he is steadily gaining on his own projected growth curve.
My Dr. said he planned to put him on Soy milk at 12 months. We're on Alimentum now, and he's about 13.5 lbs @ 8 months (on Thursday).
DD went to fully WCM + dilute apple juice at 17m adjusted. Although DD is/was something like 85th centile for actual age, I kept her on formula because I felt she would benefit from the vitamins. Also, substituting the volume of formula for an equal volume of WCM would probably have made her anemic. We did a gradual wean.. introduced some WCM at about a year adjusted.
Eventually at 17m she decided she liked the taste of WCM more and wouldn't drink anymore FM. I would go follow your instincts on this one..assuming there's no pressing nutritional need to keep your baby on FM. There's really no hard and fast rule.
Our dr. wanted us to wait to one year adjusted, so about 15 months.
Yes, our ped had us make the switch at 1 year actual and he did great.