The editors of Nutrition Research and Practice received a letter of raising concerns regarding this paper. In response, NRP's special committee on research ethics launched an investigation. In the course of the investigation, an indication of the author's unfair dissertation was identified. The entire article has been retracted from NRP in accordance with NRP policy and editorial decision.
This article has been retracted by agreement between the authors and YoonJu Song/Seungmin Lee (Editors-in-Chief).
The online version of the original article can be found at https://doi.org/10.4162/nrp.2013.7.1.15.