**Preface to "Nutrition and Athletic Performance"**

The current collection of articles selected for this Special Issue, and now monograph, aimed to increase our understanding of the role of nutrition in athletic performance. The aim was to gather new evidence, or novel syntheses of existing evidence, in various models that address how diet, dietary supplementation, or manipulating the temporal nature of diet/supplementation may alter or influence human performance positively or negatively across broad populations. Indeed, I believe we were successful, as the current collection of papers includes such timely topics as the ketogenic diet or ketone supplementation, the gut microbiome, understanding the role of the glycemic index and timing, as well as supplementation with nitrates, curcumin, beta alanine, and creatine. Some of these papers address the current state of affairs regarding existing practices, which is frequently a forgotten or overlooked aspect that is often crucial before considering dietary manipulation. Importantly, this collection of studies was inclusive of age, sex/gender, ability status, and diversity of sport or activity. I would like to personally thank the authors for contributing to this Special Issue, which will now be memorialized as a monograph, but also the reviewers who provided critical feedback in improving the manuscripts presented herein, but also in reviewing articles that were not deemed acceptable in the journal and Special Issue. I hope that this collection helps the researchers, practitioners, and students who will become the next generation that will continue such academic pursuits.

> **Stephen Ives** *Editor*

*Review*
