Magnesium supplementation rises as health experts assess benefits and risks

Interest in magnesium supplements has surged, driven by the mineral's role in energy metabolism, muscle function, bone health and nervous system balance. Health professionals note that while a varied diet can provide necessary amounts, modern dietary patterns, high stress levels and intensive physical activity can leave many people deficient, prompting a rise in supplement sales across pharmacies, sports centres and online platforms in Spain and the United States.

Research highlights possible cognitive benefits, especially from magnesium threonate (commercially known as Magtein), which is engineered to cross the blood‑brain barrier. An Australian study linked a 41 % increase in magnesium intake to reduced age‑related brain shrinkage and improved memory, and surveys suggest roughly 60 % of the global population does not meet recommended magnesium levels. The growing evidence fuels debate over whether supplementation meets a genuine nutritional need or reflects a wellness trend.