Hi, so I am looking to put my 9 week old on formula as my milk does not look to be filling him up. His pead recommended Nan optipro, lactogen or pelargon. Please note that I do not like S26 as I feel that it smells like a bowl of sugar (my opinion). Does anyone have any pros or cons as to which is the better of the much or is there any other one I should try. He has some constipation issue already. Just want to make the right call that's best for him.
Best formula brands
