55 ZMT also includes ingredients that may help normalize testosterone levels, including ashwagandha and zinc, both of which have been shown to increase testosterone levels in clinical studies.20 27 That translates to more than 15mg of elemental zinc in ZMT
Ours is the first study to demonstrate CNS GSH augmentation using a noninvasive, self-administered therapy in humans
McKenney JM, et al
Because gut bacteria can turn choline into TMAO, too
[1] The honest summary is that the animal record is heterogeneous: some biomarkers move favorably in some strains and protocols, but a clean, reproducible, cross-laboratory lifespan-extension signal is not established, and the variability across experiments is itself a reason for caution rather than a footnote to be skipped
Silvipriya KS, Kumar KK, Bhat AR, et al