Hi Smitty,
We put Boost Plus into Charlies Peg tube. But the doctors said, just like Amy mentioned, that anything can do into the tube as long as it is pureed or blended. Just stuff with the most calories and of course water for hydration. But what goes in- can also come out- I have learned from a horrific expierence with cheese- so just be sure to close the PEG tunnel before inserting the siringe.
Best of luck- the PEG will soon become second nature.