Hmmm... acupuncture is not listed as paranormal (http://www.randi.org/research/faq.html#2.2), so I would hazard even Randi accepts it as real.
Clearly, sticking needles in someone isn't - in itself - paranormal, and will have (at least some) physical effects - although whether these effects are significant or useful is another matter. Some beliefs associated with acupuncture - chi moving through the body, for example - are paranormal.
I'd agree that studies provide at least reasonably compelling evidence that sticking needles in people can sometimes provide some health benefits. However, this doesn't necessarily mean that we need to bother with acupuncture - it could be that there's one or two points on the body where it's best to stick needles for any complaint this can treat, for example.