I have been taking Alli for a few weeks and it seems to be working OK.  The only side efefct I have noted is an odd unpleasant odor to my urine. Also on one or two occasions when doing a heavy heard work out, I have noted a similar odor to my perspiration. Is this common and is there any way to counteract this?

 Hello. alli works locally in the gut - very little of the dose (<5%) is absorbed in to the bloodstream so it really should not affect the odor of your urine or sweat. If you recently added a multivitamin as well, they sometimes can affect the color, and odor of your urine. Did you always take a multivitamin or is that a new addition? Also, certain foods (asparagus is notorius for this) will give a distinct odor to your urine.

More than likely, it is your dietary changes or the multivitamin that is causing what you are noticing. Rest assured the changes you are noticing are not likely to be dangerous in any way in case you were concerned.

Best of health!