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However, further research is needed to establish its efficacy in this context 1

Better Absorption Compared to Oral Supplements For some, taking oral Vitamin B12 supplements might not deliver the desired results due to absorption issues, especially in individuals with gastrointestinal conditions

It contains 0.9% benzyl alcohol which helps the solution remain sterile for an extended period of time

Peer review Peer review information Nature Reviews Gastroenterology & Hepatology thanks Nadine Cerf-Bensussan, Bana Jabri and the other, anonymous, reviewer(s) for their contribution to the peer review of this work

For people who have trouble absorbing B12, this may be the best way to receive the vitamin