Hi all - My sister Cathy has a PEG tube - right now she has managed to get up to 4 cans of a high cal Ensure type liguid called Isosource a day - that gets her 1500 calories.She jsut can't take all that volume. Has anyone tried adding anything to these to boose the calories? There is a product called Polycose which you can get in liquid or powder form - when you add it to anything it's supposed to boost calories without adding volume - has anyone tried anything like that? Cathy was only 100 pounds when she had her surgery and is way down from that now.