I never could get as much as they wanted me too, and in fact I couldn't tolerate the formula very well. We even tried a different kind. I know we all need a certain amount of calories per day, and more to fight off the illness, but I think they sometimes forget to take into account body types and former habits ... I couldn't have taken in that many calories even on a healthy day when I COULD eat whatever I wanted. I am a small eater, and always have been. Forcing my stomach to do more than it actually could ended up harming me badly in the long run.

That said, I did make very sure to stick to a schedule of what I actually could manage, and kept on top of my meds and my hydration. That was the only way to keep sane about the whole thing.