Bob, I'll let you go, but I'll start.
The stomach shuts down when you first get to orbit. All your systems shut down a little bit, so the HCl that's secreting out of the inner lining of your stomach to digest your food doesn't quite work the way it did before you left. Because of that, the best thing to take when you first get up there--not everybody agrees with this, and it's somewhat anecdotal--is shrimp cocktail with as much horseradish as you can take. If you take that, it kickstarts your stomach into action.
I will tell you that the shrimp cocktail tastes very good when you first get on orbit, but the consistency of the shrimp is like cardboard, so there's a balance.