Hi All,
Petr, Coffee, or more specifically caffein, is safe in SMALL doses. I'd be REAL careful about the all-day treat, though. In fact, my liver doc recommended I drink a bit of caffeinated beverage to clear migraines.
Coffee, in and of itself is VERY hard on the pancreas - memory fails me right now as to exactly what it does, but if there's an interest, I can look it up.
One of the best aids to maintaining a constant energy level (aside from sleeping regular hours

) is eating frequent meals throughout the day - like every 3hrs eat something, depending on your dietary needs. That doesn't mean slam down a candy bar or a bag of chips, either

! Protein will give the slowest and longest lasting energy release, but many of us with liver disease need to really monitor our protein intake as too much can be VERY harmful.
Complex carbohydrates - like whole grains, vegetables, and fruits will give a somewhat quicker boost, but will also be used up a bit quicker. Seriously, though, this is something that should be discussed with your health professional, and preferrably with a GOOD (not just ANY) nutritionist that uses WHOLE FOODS in their regimen, not prepackaged foods.
good luck!