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Article History

Received: 8 September 2025

Accepted: 23 January 2026

First Online: 2 February 2026

Competing interests

: This study was sponsored by Olimp Laboratories Sp. z o.o., which received a public research grant from the National Centre for Research and Development (NCBiR, Poland). The funding agency had no role in the study design, data analysis, interpretation, or the decision to submit the article for publication. The study was conceptually designed by investigators from the Academy of Physical Education, Katowice, Poland, and Medical University of Silesia, Katowice, Poland, in cooperation with the R&D department of Olimp Laboratories Sp. z o.o., and subsequently approved by the sponsor. The investigational product was developed and manufactured in-house at Olimp Laboratories Sp. z o.o. by company employees who are also co-authors of this paper. The sponsor had no role in data analysis, interpretation of results, manuscript writing, or the decision to submit for publication. These details are now explicitly stated in the revised manuscript to ensure full transparency. All aspects of patient recruitment, data collection, data management, and preliminary statistical analysis were performed independently by the Academy of Physical Education, Katowice, Poland and Medical University of Silesia, Katowice, Poland research teams. The final statistical analyses were conducted by the first author and independently cross-checked by the Academy of Physical Education, Katowice, Poland and Medical University of Silesia, Katowice, Poland co-authors to ensure accuracy. JM, RJ, BK, KK, JW-K, DW, and KM are employees of Olimp Laboratories Sp. z o.o. The remaining authors declare no competing interests.