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Injections bypass digestion and deliver B12 directly into the bloodstream, providing faster and more effective results
The Recommended Dietary Allowance (RDA) is in fact not the bodys daily requirement exactly, but rather the amount of vitamin B12 which according to the recommendations of the corresponding organisations should suffice to cover the minimum daily requirement of 97.5% of healthy people
Oral delivery is the most effective for treating gastrointestinal issues
Anecdotal reports of subcutaneous use exist, but no formal stability, bioavailability, or safety data supports this route
Use the 3 IU per mg reference ratio
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