You might ask for the Peptide, I think it is for kids up to 13 if I remember right and Jack thinks it tastes better then the Petomen Jr., he also didn't think the Boost Kid Essential tasted too bad. The Boost Kid Essential and Peptide 1.5 was too thick for him, didn't like the texture but it might be worth a try it has more calories.
I'm waiting on the phone with my insurance right now trying to get it covered since he will drink it, they don't want to cover it but if it was an NG tube they would so we are trying to protest, I'm now on 3rd level of higher ups to try and get even a portion covered.