Additional file 3 of Dietary interventions in skin ageing: a systematic review and meta-analysis

Additional file 3: Summary of dietary intervention studies included in the meta-analysis, alongside their categorisation into dietary groups. Each entry details the original study’s authorship, year, intervention, and the diet category assigned for analysis. Justifications for diet groupings are provided, including the rationale, source, and full citation of the supporting literature used to classify the intervention.