NAN is an infant formula that is made by Nestle, which also makes Good Start Essentials and Good Start Supreme formula. It is mostly marketed to Hispanic parents in Latin America. Keep in mind that it is not the same as Good Start Supreme. In addition to having a different name, it is made with a different mix of milk proteins. Instead of the 100% whey “comfort proteins” that Good Start Supreme has, NAN is made with a combination of whey and casein milk proteins. It is basically the same as the older Good Start Essentials line of baby formula made by Nestle.