In a randomised controlled trial looking at acupuncture for depression and anxiety, involving 43 patients with minor depression and 13 with generalised anxiety, acupuncture compared with placebo treatment resulted in significant clinical improvement in depression as well as a marked reduction in anxiety symptoms.
(Acupuncture in patients with minor depressive episodes and generalized anxiety. Results of an experimental study. Fortschr Neurol Psychiatr, March 2000.)