Letter to the Editor Re: Teoh SL et al., Nutrients 2016, 8, 57.

Dear Editor, We read with interest the recently published meta-analysis report titled “Chicken Essence for Cognitive Function Improvement: A Systematic Review and Meta-Analysis” by Teoh et al. [1] in Nutrients. We feel that a substantial number of questions are raised by this analysis, none of which are sufficiently addressed by the authors. The questions and issues can be grouped into general categories, and these are given below in order of decreasing importance.