2.7. Statistical Analysis
All experimental data were presented as mean ± standard error of the mean (S.E.M). All data were compared between placebo and experimental groups (D2 or D4), except severity score of eye dryness, which was also compared between baseline and after an 8-week consumption period. Statistical analysis was achieved by ANOVA followed by post-hoc Tukey’s test. Significant differences among groups were regarded when 