Effectiveness of royal jelly supplementation in glycemic regulation: A systematic review
Kamel Omer, Maxwell J Gelkopf, Genevieve Newton, Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada
Author contributions: Omer K and Newton G conceptualized research question and created search strategy; Omer K and Gelkopf MJ conducted full text inclusions and risk of bias assessments; Omer K and Newton G conducted GRADE assessment; Newton G reviewed manuscript throughout writing stage; Omer K conducted database search, data extraction and analysis, and manuscript preparation.
Conflict-of-interest statement: The authors declare no conflict of interest.
PRISMA 2009 Checklist statement: The authors have read the PRISMA 2009 Checklist, and the manuscript was prepared and revised according to the PRISMA 2009 checklist.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Corresponding author: Genevieve Newton, BSc, MSc, PhD, Associate Professor, Human Health and Nutritional Sciences, University of Guelph, 50 Stone Road East, Guelph, ON N1G2W1, Canada. firstname.lastname@example.org
Telephone: +1-519-8244120-56822 Fax: +1-519-7635902
Received: November 15, 2018
Peer-review started: November 15, 2018
First decision: November 29, 2018
Revised: January 29, 2019
Accepted: February 11, 2019
Article in press: February 12, 2019
Published online: February 15, 2019