Whey Protein Supplementation with or without Vitamin D on Sarcopenia-Related Measures: A Systematic Review and Meta-Analysis.

"Author disclosures SMP reports grants or research contracts from the US National Dairy Council, Canadian Institutes for Health Research, Dairy Farmers of Canada, Roquette Freres, Ontario Centre of Innovation, Nestle Health Sciences, Myos, National Science and Engineering Research Council and the US NIH during the conduct of the study; personal fees from Nestle Health Sciences, and nonfinancial support from Enhanced Recovery, outside the submitted work. SMP has patents licensed to Exerkine but reports no financial gains from any patent or related work. The other authors have no conflicts of interest to report."

"Funding There were no specific sources of funding for this work. EAN is a tier 2 Research Productivity Fellow supported by the Brazilian National Council for Scientific and Technological Development (CNPq) (grant number 308584/2019-8). SMP is a tier 1 Canada Research Chair and acknowledges the funding from that agency. SMP also holds grants from the National Science and Engineering Council (NSERC) of Canada (RGPIN-2020-06346) and the Canadian Institutes of Health Research (CIHR)."

"This systematic review and meta-analysis was developed according to the guidelines laid out in the Cochrane Handbook for Systematic Reviews of Interventions [] and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) report []. The study protocol was registered in the International Platform of Registered Systematic Review and Meta-analysis Protocols (INPLASY; registration number: INPLASY202240167). All research team members agreed on the study’s steps: identification, screening, data extraction, and analysis. The trial was registered at https://inplasy.com as INPLASY202240167."