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Nature 508 (7495), 258262
No medication exists to lower B12 levels specifically, and there is no clinical need for one because the B12 itself isnt causing harm
Vegans and vegetarians, in particular, benefit from B12 injections because the B12 vitamin is found almost exclusively in animal products
The peptides ability to produce metabolic effects with such rapid plasma clearance (3-minute half-life) while maintaining prolonged biological activity represents a significant knowledge gap requiring further investigation
The deltoid (upper arm) is also an IM site but can be harder to reach on your own
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