No, excess fluid weight is not the same as excess fat. You can lose excess fat by reducing calorie intake and exercising more, so basically you are burning up more calories than you are taking in.
Fluid weight can be lost from the kidneys and by passing more urine, so yes, if you drink more fluids then you are cleansing your kidneys and encouraging them to become more efficient at clearing the fluid from your body. You also excrete excess water from your bowels when you pass stools, through the skin when you sweat and via the lungs during respiration as carbon dioxide.
It is my understanding that some of the psychotropic medications that lead some to gain weight are messing up the metabolism a little. So, if the gain is more than water weight, it may be a little tougher to get the pound off. Don't get discouraged if the weight does not come off too easily, stick with it while your body is adjusting without the meds.
Sorry . . . by good, clean living I meant my diet - eating really well and in such a way that I would have lost weight previous to taking the medication (and I was also off the medication at that point).
I don't think the change in metabolism is permanent (though even about 8 months later, I think it is still slower than before medication), but it took time to start speeding up again. And I was exercising more, too. It was really discouraging!
I'm not sure it is so much a matter of the medication being in my system, but that when I was taking the medication my metabolism was impacted; and the change in my metabolism persisted even after I stopped the medication.
Originally posted by sweetwawa: how can it have mest up metabolism if you don't take it anymore?
It's sort of the same idea as how you can still have a scar years later even though you don't have the cut anymore. The medication had an impact on metabolism, and it take a while for the body to heal.
But the reason for my first response was exactly to say it might take a while for the weight to come off . . . but if you stick with eating right I think it will come off (judging from my experience).