2.3. Statistics
All normally distributed data are presented as mean ± SD, whereas non-normally distributed data are presented as median ± interquartile range (IQR). All data were explored for distribution using the Shapiro–Wilks test. Normally distributed data underwent a 2 × 3 mixed ANOVA with 2 between factors (LCHF vs. HCLF) and 3 within factors (baseline vs. interim vs. endpoint) to investigate significant differences for the main and interaction effects. If repeated measures data had a missing value, mixed effects analysis was used instead of ANOVA. Non-normally distributed data were log or square root transformed prior to parametric or non-parametric analyses (Friedman and Kruskal–Wallis test). All 