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Stomach pain : Approximately 20% of users experience abdominal pain or discomfort
Individuals with B12 deficiency often report experiencing brain fog, memory lapses, and difficulty concentrating
Kwon K, Streaker ED, Ruparelia S, Beckett D
This distinction matters not because B12 injections are inherently dangerous, but because the systems surrounding the injection determine how quickly and effectively a provider can respond if something unexpected occurs
It is not intended for use by the general public
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