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. 2023 Jul 26;15(15):3324. doi: 10.3390/nu15153324

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© 2023 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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The differences in antioxidant biomarker parameters between the four trials (supplements) before, after, and 20 min after a 90 min bout of prolonged submaximal exercise. (a) superoxide dismutase (SOD), (b) catalase (CAT), (c) glutathione peroxidase (GPx), (d) glutathione (GSH), (e) biological antioxidant potential (BAP), (f) diacron reactive oxygen metabolite (dROM), and (g) blood lactate. Pla: placebo; VitC: vitamin C supplement; Glu: glutathione supplement; VitC+Glu: combined vitamin C and glutathione supplement. The bars indicate the mean ± standard deviation. * indicates significant difference (p < 0.05). † indicates significant main effect (p < 0.05).