You can't just take a random ZMA. With combinations, you're more likely to get a poorly bioavailable form, like L-threonate, oxide, or hydroxide.

You should be looking for citrate or glycinate.

PSA: 48% of people have magnesium deficiencies, the highest of any vitamin/mineral, I'm pretty sure.

https://examine.com/supplements/magnesium/#dosage-informatio...