I was in the medical category, taking heavy meds for seizures and related difficulties. Our daughter was born early and her stomach lining wasn't fully developed so regular formula was a no-no. Thankfully we were able to find a wonderful formula called Nutramigen...$$$ but closest to breast milk they say. Our next step was perscription formula if the Nutramigen didn't work.
I'm so very thankful that at 12 she's healthy. :o)
Probably more information that you wanted but there it is! Have a great day, MG.