Funding for this research was provided by:
Projekt DEAL
Article History
Received: 22 June 2020
Accepted: 11 December 2020
First Online: 30 December 2020
Compliance with ethical standards
:
: Lukas Schwingshackl is a member of the Editorial Board of Advances in Nutrition, and a member of the GRADE working group. Holger J Schünemann: is co-chair of the GRADE working group. Joerg J Meerpohl: is a member of the GRADE working group.