Acupuncture has been linked to appetite suppression, and thus to weight loss. One method, discussed in research published in 1998 in the journal “Australian Family Physician,” involves acupuncture treatment to the ears. So how does this work? Australian scientists report that acupuncture stimulates the auricular — or ear — branch of the vagal nerve and raises serotonin levels; this works to increase tone in the smooth muscle of the stomach, which results in appetite suppression. Consult your doctor before beginning any alternative treatments for weight loss.