In the studies done on a group of NCAA football players, the ZMA group showed 250 %
more muscle strength gain than the placebo group, but in actual strength gains, the ZMA group showed 11.6 % compared to 4.6 % for the placebo group.
Take note: don't be fool when you see marketing material claiming «athletes gained 250 %
more muscle strength than placebo group using ZMA».
Most importantly, you can expect results that you want:
more muscle strength.
They also believe that
more muscle strength can improve endurance activities.