My son is 14 months and only takes one bottle a day. He takes the rest of his formula through a sippy cup. He is a lazy eater and I have to hold it but he drinks about 15 ounces a day through a sippy, but it is the diposable one so he doesn’t have to suck that hard. He actaully seems to perfer his Phenex to regular Enfamil. However I introduced the sippy at about 5 months. can you provide more info on the gel and other stuff you use to get all the formula in him. My son fills up on formula and doesn’t eat his food as well.