If you want her to gain weight get the scandi shakes and ask you doctor for a prescript
ion for a powder called DUOCAL. It adds calories to whatever you put it on. It is tasteless. Start looking at calories on everything. Only buy what is the highest, also buy vitamin D milk, and add extra butter or sour cream to foods that it would mix into well. Like mac and cheese, mashed potatos.
It is hard to get cf kids to gain weight. How is her appetite. My son ended up getting a g-tube because he just stopped eating. Not to say that she will. My son is on the worst end of cf.
Good luck at the weight game....my prayers are with you.