Thanks for the info - that all makes sense. The nurse literally chased me down in the hall and handed me a bag with it in there as I was leaving... and I had no idea what it was.
Steven - aside from vicodin the day of and a day or two after surgery, I haven't taken anything except fish oil (in the neighborhood of 10-15ish grams a day - I weigh around 230#) and it's been working wonderfully. Not only was my recovery faster than anticipated, but (aside from the bad weight gain - from my poor diet, drinking, and sitting on my butt all day) I haven't had many adverse performance effects in terms of strength (metabolic conditioning is another story - but that's my fault).
Thanks again everyone for your help.