Evidence check: Magnesium in the context of Schlaf

Magnesium is frequently linked to sleep, but the evidence is mixed. Some studies suggest magnesium can improve sleep quality, especially in individuals with a confirmed deficiency or conditions like restless legs syndrome. Mechanisms include regulation of GABA receptors and reduction of cortisol levels. However, large-scale randomized controlled trials are lacking, and most evidence comes from observational or mechanistic studies. For the general population, the benefit is uncertain. DNA tests may offer insights into genetic variants affecting magnesium metabolism, but clinical utility is limited. MyBody-X tests are not diagnostic and should not replace medical advice. For sleep issues, it is better to first address sleep hygiene, stress, and underlying medical conditions before supplementing. The overall evidence for magnesium as a standalone sleep aid is weak to moderate.