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SAM is the universal methyl donor for DNA methylation, histone methylation, and hundreds of other methylation reactions that regulate gene expression

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2018;61:T139-T169

Khattab R, Albannawi M, Alhajjmohammed D, Alkubaish Z, Althani R, Altheeb L, Ayoub H, Mutwalli H, Altuwajiry H, Al-Sheikh R, Purayidathil T, Abuzaid O

Better oxygenation means more endurance, less fatigue, and better overall performance in the gym or outdoors