
Magnesium: Most People Don’t Need Supplements—Here’s Why
Magnesium is essential for sleep, nerves, hormones, and muscles, but most adults get enough from a varied diet, so unnecessary daily supplementation isn’t advised and can be risky in excess. Supplements may help only in specific cases—such as a confirmed deficiency or high sweat loss in athletes—under medical guidance, with different forms serving different needs (glycinate for muscles, L‑threonate for brain). Aim for about 400–420 mg per day for healthy men unless a clinician directs otherwise.













