Fig. 3
From: Questionable advisability of vitamin and mineral dietary supplement use in adolescents
(a – g): Distribution of intakes of selected vitamins/minerals from food + dietary supplements (DS) in adolescent DS users in both genders. The figure also presents the median of the sample (M; blue), the upper level intake (UL; red), and the statistical significance between the two, calculated using Wilcoxon signed rank test for one-sample (* p < 0.05; ** p < 0.01; *** p < 0.001)