A randomised controlled trial in China looking at acupuncture for indigestion (dyspepsia) has demonstrated that it can improve the symptoms. A total of 200 patients with persistent functional dyspepsia were assigned to receive 20 sessions of either true or sham control electroacupuncture over a four week period. Symptom scores showed true electroacupuncture to be superior to sham at all time points, and its effect persisted for 20 weeks following the end of the treatment period.
(Electroacupuncture for patients with refractory functional dyspepsia: A randomized controlled trial. Neurogastroenterology & Motility, 28 February 2018.)