Hiya!  Yes you can have decaf coffee. I have had some regular coffee on occassion... only because I haven't found a decaf that I like yet  :-) As for the soda... good... give it up.. water is better for you. lol. My recovery period? Mmmmm its different for everyone, and it depends on the type of surgery you had.. open or lap.  I felt really good my 2nd week after my lap, altho I still can get tired fairly easy.  The insurance company wont' send you a list, they will refer you to your schedule of benefits.  Things to ask them when you call (if you haven't already) are clear and specific requirements for RNY pre authorization.  I would also ask them if you can access a list of your benefits online, or if they could send you out a copy of your benefits. Then you have a copy for yourself. My insurance also required a 6 month dr. supervised diet, along with atleast 1 co morbidity that is considered life threatening (i.e. sleep apnea, diabetes.. etc) and a BMI over 40.  There was more fine print.. but those are some common key factors that most all insurances require.  I have to log off to get to work.. I hope this helps!!