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Antioxidant capacity assessed by ferric reducing ability (FRAP) assay (a) and percentage of inhibition against DPPH (b) in the pool of serum from adolescents with low, moderate, and high polyphenol intake (low, moderate, and high). The bar graphs showed the mean ± SEM of 3 independent experiments. ∗p < 0.05, ∗∗p < 0.005, and ∗∗∗p < 0.001.
