Certainly this is the case where ear acupuncture was used as an adjunct to weight loss and found to be effective, only if you lend credence to terribly done clinical trials. Almost every error that could be applied to a study, was.
Those who received five-point acupuncture had needles placed 2 millimeters deep in one outer ear taped in place and kept there for a week. Then the same treatment was applied to the other ear... Other patients received similar treatment with one needle or with sham acupuncture where the needles were removed immediately after insertion.
I suspect that there was such a high drop out in the sham treatment as because they knew they were not getting acupuncture. A lousy placebo renders an already silly and poorly done trial completely meaningless, like most of the acupuncture trials.
But the real reason this trial is not valid is that Korean ear acupuncture is not real acupuncture. Real acupuncture is traditional Chinese. Or Japanese. Not wait, hand acupuncture. Or foot acupuncture. No, wait, tongue acupuncture. That's the ticket. Or perhaps it's the Micro Acupuncture Point System.