The systematic overview was performed and reported in compliance with the Most well-liked Reporting Gadgets for Systematic Evaluations and Meta-analyses (PRISMA) Community Meta-analysis guideline (S1 PRISMA Checklist). We searched 4 databases (PubMed, Embase through Ovid, Cochrane Central Register of Managed Trials, and SCOPUS) initially on 26 November 2019 utilizing the next search technique: (“meals and drinks” OR “meals” OR “drink” OR “beverage” OR “meal” OR “vitamin” OR “menu” OR “restaurant”) AND (“warning” OR “site visitors gentle” OR “Wheel of well being” OR “coloured GDA” OR “colored GDA” OR “5 CNL” OR “Coloration Vitamin” OR “Nutriscore” OR “Nutri-score” OR “simplified vitamin labelling system” OR “SENS” OR “colour-coded” OR “color-coded” OR “color coding” OR “shade coding” OR “crimson label” OR “inexperienced label” OR “Advanced Vitamin Label”). There was no restriction on language. The search was up to date on 24 Could 2021 to seize the newest publications as much as the submission of manuscript. Extra articles had been recognized by reviewing the bibliographic reference of recognized articles. Articles of all sorts revealed from 1 January 1990 had been included at this stage.
