You will have to look long and hard to find lactose intolerence in infants... It can occur in infants after serious, protracted diarrhea, but it is not a common occurrence in otherwise healthy infants. You might ask the MDs what are their references.."you are always interested in the most current information...", I hope thewy do not give you abm literature They are busy producing a product to "threat" this condition after convincing uninformed parents of its existence. Anne Andrianos, MSN, IBLC, LLL.