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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2129161/
"Brilla and Conte [13] reported that ZMA supplementation significantly increased free testosterone, IGF-1, and isokinetic strength gains during training. Results of this study do not support these findings."
"ZMA supplementation had no significant effects on total and free testosterone,"
"no significant effects were observed between groups in changes in 1-RM strength, upper or lower body muscle endurance, or anaerobic sprint capacity."
hippy
Yukirin
Who?
Helps maintain testosterone levels, protein synthesis and gets you into a deeper sleep state quicker. I generally only get 5-6 hours sleep a night and it has a mild effect on how refreshed I feel when I wake up. Should work better if I could wait longer after taking the shake but I can't wait around.