Studies don't back this.
We reviewed the trials we hold for energy. Magnesium's results were not strong enough to credit. There's no real evidence magnesium boosts energy in healthy people. The energy claims ride on a couple of self-reported items buried inside sleep studies, not a proper fatigue test. If you're not deficient, it won't pep you up.
See the evidence behind this answer in the complete report, including what was tested, the dose and preparation used, who took part, and funding information where available.
