When and how do you take your vitamins?

i haven't found any research regarding when the best time of day to take vitamins is, and whether they should be taken with food or on an empty stomach. I found a couple things that were written for non-ops...but since we have changed everything surgically I doubt this applies to RNY patients. Has anyone found a reputable source for this information? How and when were you instructed to take your vitamins?  

I don't have an answer for this, but I have the same question. I have my final pre-op nutritionist appointment today and plan to ask. I'll let you know what she says.

Edited: So here's what she said. The surgeon at my office doesn't make reference to vitamins on the paperwork because every patient is different. Also, needs may change over time, so vitamin intake will change. She told me that he'll discuss all of that at my pre-op appointment next week, so I can ask him about what kind of schedule he wants me on.

She said as long as I don't take my iron and calcium together, and try to take any and all vitamins with food, I shouldn't have to worry about it.