Tomaszek, M.; Benecka, A.; Chojniak, A. K.; Kuna, P. J.; Kuna, W.; Chmielowiec, L.; Radziwon, M.; Adasiewicz, J.; Kwaterska, K.; Borowski, K. Betaine (TMG) As a Dietary Supplement in Sports – Mechanisms of Action, Ergogenic Effects, and Safety of Use. Qual Sport 2025, 47, 66772.