Table 3.

Studies on diet and nutrition for the management of systemic lupus erythematosus [108, 110, 113]

^aP intervention/management strategy applied to population under investigation, C intervention/management strategy applied to participants in the comparator group, N/A not applicable

^bHRQoL health-related quality of life, NS Non-significant

^cStudy design and overall appraisal (adapted from the Joanna Briggs Institute Manual for Evidence Synthesis [19]); yellow colour denotes intermediate robustness in overall appraisal; MA meta-analysis, RCT randomized controlled trial

^dLoE levels of evidence according to the Oxford Centre for Evidence-Based Medicine [20]; light blue colour denotes level 1 (strongest evidence) and dark blue colour denotes level 2