giving b12 injection in arm Injecting What happens when you inject vitamin B12? Vitamin B12 Injections
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All handling and use must comply with applicable laboratory regulations and research standards.
Nature, 2014

This puts anyone following a strict vegan or vegetarian diet at a very high risk for deficiency

Clinical trial results: Cagrilintide weight loss data Real-world evidence from rigorous studies

You can also consult your doctor to establish an appropriate dose if its determined that you dont get enough B12 from food sources
