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Common methods used for the determination of magnesium status with pros and cons.
| Analysis Method | Advantages | Difficulties |
|---|---|---|
| Serum | Rapid and easy | Does not reflect total body magnesium |
| Urine Excretion | Valuable for tracking kidney wasting (high [Mg2+]) or intake issues (low [Mg2+]) | Time consuming |
| Isotopic Analysis | Confirmed role of small intestine in absorption | Confined to laboratory research |
