Well the truth is, neither of them passed muster… as we found out a few weeks ago that our son is lactose intolerant because he always had gas pains and he suddenly developed diarrhea… which necessitated a trip to our doctor who then recommended us to switch to Enfalac… checking the ingredients I found out that its similar to what Nan and S-26 have, although majority of the dosage were lower. A handful of the key elements however had double the dosage than what Nan and S-26 had…

Update: Found out that our son is not lactose intolerant. Like all babies, some are sensitive to certain milk brands because their stomach’s are still developing. Just have find the correct milk brand for him.