Title {1}	Effects of Royal Jelly on Oxidative Stress Markers, Athletic Performance, and Gene Expression of Nrf2 and PGC-1α Related to Mitochondrial Biogenesis in Male Endurance Athletes: A Randomized, Crossover, Double-Blind, Placebo-Controlled Trial Protocol
Trial registration {2a and 2b}.	Iranian Registry of Clinical Trials (IRCT20231209060310N1(
Protocol version {3}	Date: December 21, 2023; Version No: 1
Funding {4}	This study is supported by the Kermanshah University of Medical Sciences, Kermanshah, Iran.
Author details {5a}	Mahsa Miryan1, 2, 3, Vahid Tadibi4, Ehsan Sadeghi5, Farid Najafi6, Amir Saber2, Mohammadreza Abbaspour7, Yahya Pasdar2, 3* 1 Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran 2 Nutritional Sciences Department, School of Nutritional Sciences and Food Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran 3Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran 4Exercise Metabolism and Performance Lab (EMPL), Department of Exercise Physiology, Faculty of Sport Sciences, Razi University, University Avenue, Taq-e Bostan, Kermanshah 6714414971, Iran 5Department of Food Science and Technology, School of Nutrition Science and Food Technology, Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran 6Research Center for Environmental Determinacies of Health, School of Public Health, Kermanshah University of Medical Sciences, Kermanshah, Iran 7Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
Name and contact information for the trial sponsor {5b}	Dr. Yahya Pasdar Address: Nutritional Sciences Department, School of Nutritional Sciences and Food Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran. Email: Yahya.pasdar@kums.ac.ir Tel: +98 8337102015
Role of sponsor {5c}	The study sponsor played no role in the study's design, the collection, management, analysis, or interpretation of data, the writing of the report, or the decision to submit the report for publication. Furthermore, they did not have ultimate authority over any of these activities.