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. 2023 Jun 15;24(12):10200. doi: 10.3390/ijms241210200

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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 effect of supplementation on vitamin D metabolites. (A) Changes in serum concentrations of 25(OH)D₃. (B) Changes in serum concentrations of 25(OH)D₂. (C) Changes in serum concentration of 24,25(OH)₂D₃. (D) Changes in serum concentrations of epi-25(OH)D₃. * p < 0.0006, ** p < 0.005, *** p < 0.05. T0—before the supplementation; T2—after 12 weeks of supplementation; PL—placebo group; VitD—vitamin D₃ group; whiskers refer to standard error (SE).