Ions for the duration of education periods, they seek option dietary strategies to enhance endurance performance and metabolic overall health [2]. It is of paramount importance that a popular diet plan need to be scientifically established before being adopted in the athletic population [3]. Vegetarian diets [4], high-fat diets (HFD) [5], intermittent fasting (IF) diets [6], gluten-free diet regime (GFD) [7] and low fermentable oligosaccharides, disaccharides, monosaccharides and polyols (FODMAP) diets [8] are extremely well-liked among endurance athletes. Within this review, we’ll talk about both the effective and damaging elements of those diets on metabolic overall health and endurance efficiency. two. Solutions We searched both the PubMed and Cochrane databases for the terms “diet”, “trackand-field”, “runner”, “marathoner”, “cyclist”, “cycling”, “triathlete”, “endurance”, and “endurance athletes” inside the title, abstract, and search phrases to detect the most applied diets involving 2015 and 2021 in endurance athletes. We obtained 217 benefits in PubMed and 80 trials inside the Cochrane database. We defined probably the most recurrent diets in endurance athletes, like “High CHO availability”, “High-carbohydrate diet”, “Ketogenic diet”,Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations.Copyright: 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access short article distributed beneath the terms and conditions of your Tetracycline Compound Inventive Commons Attribution (CC BY) license (https:// 4.0/).Nutrients 2021, 13, 491. 2021, 13,2 of”Low-CHO diet”, “Low-CHO, high-fat diet”, “Ketogenic low-carbohydrate, high-fat diet”, “Low-carbohydrate ketogenic diet”, “Low-carbohydrate, higher fat, ketogenic diet”, “Highfat, low carbohydrate diet”, “Ketone ester supplementation”, “time-restrictive eating”, “Ketone supplementation”, “Intermittent fasting”, “fasting through Ramadan”, “Vegan diet”, “Lacto-Ovo vegetarian diet”, “Vegetarian diet”, “Low fermentable oligo-, di-, monosaccharide, and polyol diet”, and “Gluten-free diet”. Considering that all of us know that high-carbohydrate diet plan is currently well verified to enhance endurance efficiency [2], we targeted other diets for in-depth investigation by categorizing them as “vegan/vegetarian diets”, “high-fat diets”, “intermittent fasting”, “low-FODMAP eating plan, and “gluten-free diet”. We included research on endurance athletes and preferred diets, like vegetarian diets, high-fat diets, intermittent fasting, gluten-free diet, and low-FODMAP diet. Making use of PubMed, Cochrane Library, and Web of Science databases, we aimed to determine research on races and endurance coaching. Two researchers (A.D.L and L.H.) independently reviewed the literature. In circumstances of NOP Receptor/ORL1 review conflict, a third investigator (B.K.) resolved the disagreement. We identified the research published from 1983 to 2021. To define the research on endurance athletes and diets to be integrated within the current narrative overview, we searched MeSH terms ((“Diet, Ketogenic” (Majr); “Diet, High-Fat” (Majr); “Diet, Carbohydrate-Restricted” (Majr); “Ketone Bodies” (Majr); “Diet, Vegetarian” (Majr); “Diet, Vegan” (Majr); “Fasting” (Majr); “Diet, GlutenFree” (Majr); “athletes” (Majr); “physical endurance” (Majr); “Diet Therapy” (Majr); ” Oligosaccharides” (Majr), “Disaccharides” (Majr)) and MeSH terms discovered beneath this term in the MeSH hierarchy suggested by PubMed and Cochrane Library.