Ok guys, every since I started drinking bettermilk I feel way better though out the day. I used to be on Phenex 2 but then my Childrens Hospital wasnt selling it anymore, so I HAD to switch to bettermilk. At first I hated it so much because it tasted really bad. But eventually I got used to the taste. Now whenever I dont have it, I can easily tell. I'm more moody, mad, and "annoying" when im not drinking it. But when I am I am as happy as could be! So whatever type of formula you are on, I think you should try out Bettermilk because it is DELICIOUS.