Statistical analysis
SD
Calculations and statistical analyses were performed using R version 4.1.2 (R Foundation for Statistical Computing, Vienna, Austria). Normally distributed data tested by Shapiro–Wilk are reported as mean ± SD if normally distributed or as median (with interquartile range) if not normally distributed. FZA and total absorbed zinc (TAZ) values are reported as geometric means (lower SD and higher SD). Potential carryover and meal sequence effects were investigated with a mixed effects model (subjects as the random effect) using the “lmer” function in R. The significance (