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B12 is water-soluble and any excess is excreted in urine there is no established upper tolerable intake level for B12 and toxicity from injection at standard doses has not been reported
Injections send B12 straight to the bloodstream, making them more potent and longer-lasting when compared to oral supplements
Laboratory Parameters for Therapeutic Assessment We check several key lab tests to see how well vitamin B12 injections are working
Vitamin B12 is essential for energy production, red blood cell formation, and maintaining a healthy nervous system
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