I don't know what the calorie/bio-availability ratio is and it is very possible I overstated how little effect it has on an empty stomach, you will probably get some without food, but not as much with. My pdoc told me about it and searching geodon food will give lots of information about it. I hate to say to take it against the prescription instructions. Here is one article discussing it.

My doc said around 500 calories with high protein is the best.

The one good thing about it is my diet is really healthy now.