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Lang T, Croal B
Key points about elevated B12: Water-soluble vitamin with significant hepatic storage capacity Elevated levels defined as exceeding laboratory upper reference limit Often discovered incidentally during routine blood tests May reflect underlying pathology rather than toxicity Persistent elevation should be confirmed with repeat testing It is important to note that high B12 levels are generally not considered toxic in the same way as fat-soluble vitamins
A vitamin D deficiency can also occur from low dietary intake of the vitamin or sparse sun exposure
Subcutaneous injection is the practical human-equivalent choice
For a 1.6 mg target dose: Volume to Draw = Desired DoseConcentration = 1.6 mg4 mg/mL = 0.4 mL Convert to syringe units
Understanding how it actually works at a biological level, not just what it is claimed to do, is the foundation for making any responsible clinical decision about whether it belongs in a protocol
