If the calories are there (and they should be!), the calorie count is accurate. The stuff that wouldn't be accurate would be the stuff that's on the protein powder label and not in FitDay's chart. In short, calories would be accurate, some of the more obscure nutrition stuff wouldn't be.
"If you drop an egg, you don't say, 'Oh, shoot' and drop the other 11, do you?"
-Source unknown, but obviously brilliant
Reached goal 4/16/2010...but kind of afraid to look these days