Statistical analysis
GENOTOXICITY
This study was powered according to the primary endpoint, change in faecal genotoxicity, described previously [Data was assessed for normality by visualising Q-Q plots and performing Shapiro-Wilks tests before statistical analysis was performed. Data assessed to be non-normally distributed was analysed  with non-parametric tests. Changes from baseline within study phases and differences between study phases in all measures was assessed using mixed effects models. In all models, age, BMI and habitual alcohol intake were included as fixed effects, with the participant as the random effect. For measures related to BMI (body weight, body fat, trunk fat, and BMI itself), BMI was excluded from the model to avoid collinearity. The interaction of the order at which the participants received the diets was also included to capture the impact of diet order on study outcomes.Gut microbiome data for Mycomeat has been reported in detail elsewhere [A P value of ≤ 0.05 was considered significant. All statistical analyses and visualisations were performed in RStudio [