Also, my urologist actually advised me against drinking cranberry juice when I had kidney stones, and many people seem to think that UTIs and kidney stones are the same thing. (I've had both, and both suck, but they aren't the same.)
The study done that says that cranberry juice doesn't help with kidney stones was done at the University of Texas on 12 people. That is far to small a sample for the scientists involved to make claims about the effectiveness of cranberry juice. The fact that they published the data at all was shameful.
If the kidney stones aren't moving, I'd suggest you get some light activity in (strength training might actually be very beneficial). Make sure to hydrate (also, cranberry juice isn't a good idea for those suffering from kidney stones as it may actually increase the odds of you having one). If you're having an attack and it's moving, then lay down and take something and for goodness sakes don't try to exercise! (I've had them before and they suck!)
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