Magnesium plays a vital role in numerous cellular and enzymatic functions, yet it tends to be neglected or undervalued. Hypomagnesemia, a prevalent medical concern, significantly impacts the morbidity and mortality rates of cancer patients. This review provides an overview of magnesium physiology and accentuates the mechanisms involved in magnesium inbalances resulting from cancer and its treatment, seeking to emphasize the importance of monitoring magnesium levels in cancer patients to healthcare providers and serve as a practical resource. Future clinical research should prioritize investigations into magnesium monitoring’s effects on cancer advancement.
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