This is a protocol for a Cochrane Review (overview). The objectives are as follows:

To summarise the evidence on the effectiveness, acceptability, and safety of non-pharmacological interventions for FMS in adults.

To explore variability in methods across Cochrane Reviews, in regards to inclusion/exclusion criteria, outcomes, comparisons, and the methods of assessment of adverse events.

To examine the quality of Cochrane Reviews of FMS and inform on how reporting of Cochrane Reviews on FMS may be improved.