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The benzyl alcohol preservative helps maintain sterility of the line between uses
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The most common causes include B12 supplementation (particularly injections), liver disease releasing stored B12, haematological disorders increasing B12-binding proteins, and chronic kidney disease reducing B12 excretion
People who have problems absorbing vitamin B12 may eventually suffer from pernicious anemia
However, persistently high serum B12 levels warrant medical investigation, as they may indicate liver disease, kidney dysfunction, or haematological disorders rather than simple overconsumption
So instead of bleeding metabolic resources, your cells can start reallocating them toward energy production, repair, and maintenance
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