A striking public health finding emerges from recent epidemiological data: more than half of US adults consume insufficient magnesium relative to estimated average requirements, according to the National Health and Nutrition Examination Survey (NHANES) 2017–2020. This widespread deficiency carries neurological significance. Magnesium serves as a critical voltage-dependent inhibitor of the NMDA receptor, a primary excitatory channel implicated in anxiety and neuronal stress. When magnesium levels decline, one of two independent mineral-based safeguards against excessive neural firing becomes compromised. The redundancy between magnesium and zinc mechanisms typically masks early deficiency symptoms, allowing silent erosion of neuronal protection. As the prevalence of magnesium insufficiency approaches epidemic proportions in the general population, researchers emphasize the need for greater clinical attention to mineral micronutrient status as part of comprehensive mental health assessment. Read the full article on GMJ Newsroom.
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