A study published in "Acupuncture in Medicine" indicates that ear acupuncture helps patients with weight loss, according to WebMD. However, more research is necessary, as the placebo effect in such studies is significant, particularly when needles are part of the study.
Acupuncture therapy using the ear takes its basis from the idea that the outer ear is representative for all body parts. One form of ear acupuncture for weight loss uses one needle, inserted into the spot connected to appetite and hunger. Another form inserts five needles at various key places in the ear. The "Acupuncture in Medicine" report claims that obese patients should use five needles, while the hunger acupuncture point provides convenient therapy, notes WebMD.