The difference is NAN is BIFIDOGENIC,it means it promote growth ofwel gut flora which helps in immunity development.so its costlier than lactogen. give the formula that suits ur baby! My baby kan zijn on lactogen and pooping dark cement like grey color poop for past 2. days. She stops crying https://franciscopaiou.wikifiltraciones.com/3954205/de_grootste_gids_naar_comprar_cocaina_en_linea