Quality of systematic reviews of the Foods with Function Claims registered at the Consumer Affairs Agency Web site in Japan: a prospective systematic review

Ref ID	191
First Author	H. Kamioka
Journal	NUTRITION RESEARCH
Year Of Publishing	2017
URL	https://pubmed.ncbi.nlm.nih.gov/28473057/
Keywords	• Nutrition • Risk of bias • Publication bias • Protocols
Problem(s)	• No registered or published protocol • Poor consideration of publication bias • No quality assessment undertaken or reported • Risk of bias not incorporated into conclusions of review • Low methodological (AMSTAR) quality
Number of systematic reviews included	49
Summary of Findings	The quality of the systematic reviews of Foods with Function Claims was poor (mean AMSTAR ± SD; 6.2 ± 1.8 points, range; 2-11 points). In particular there was poor registration (2%), evaluation of publication bias (12%), and appropriate conclusions based on scientific quality of the included studies (27%).
Did the article find that the problem(s) led to qualitative changes in interpretation of the results?	N/A
Are the methods of the article described in enough detail to replicate the study?	No