Do your docs test your resting metabolic rate for you? Mine does- I breathed into a machine foe a little over 10 minutes and with that information he was able to tell me approximately how many calories I burn in a day (with no additional exercise). We did it before surgery and at six weeks. The first time it recorded that my metabolism is very high. That surprised me considering I am so overweight, but when I look back at how many calories I normally took in, maybe not so surprising. Anyway, at six weeks I had lost 37 pounds and my metabolism was still in the " high" range, but had dropped some since the beginning. He wants me to start getting some type of regular exercise in so that my metabolism will stop slowing and hopefully stay steady, and in theory, let me continue to have a pretty good rate of weight loss. I'm just curious what others' experience is with this type of testing.