Magnesium is an essential mineral involved in over 300 enzymatic reactions, including energy production, DNA repair, and muscle and nerve function. Deficiency is linked to accelerated cellular aging, oxidative stress, and chronic inflammation—all factors that can influence the aging process. However, there is no strong clinical evidence from human trials that magnesium supplementation directly extends lifespan in healthy individuals with normal levels. The evidence is largely mechanistic and based on observational studies. An optimal magnesium status is certainly beneficial for healthy aging, but overdosing (e.g., through high-dose supplements) can cause side effects like diarrhea or cardiac arrhythmias. Caution is advised in kidney disease. The individual need for supplementation should be assessed via blood tests (e.g., MyBody-X nutrient deficiency test) before indiscriminate intake. In summary: magnesium is useful for general health, but not a proven longevity elixir.
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