Six-weeks of betaine supplementation improved body composition, arm size, bench press work capacity, attenuated the rise in urinary HCTL, and tended to improve power (p = .07) but not strength.| PubMed
B supplementation increased power, force and maintenance of these measures in selected performance measures, and these were more apparent in the smaller upper-body muscle groups.| PubMed
Trimethylglycine is one of the best supplements for any athlete to take. Boxers need to incorporate this into their training stack if they want to make big improvements in power and cardio.| Ed Latimore