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But because B12 is exclusive to animal products and fortified foods, vegans and vegetarians are subject to an increased risk of deficiency

Conclusion Vitamin B12 shots are used to overcome vitamin B12 deficiency, which is common especially among the elderly, those with intestinal damage or disorders, people with pernicious anemia, and vegetarians/vegans

As of June 2026, the FDA's December 2024 Pharmacy Compounding Advisory Committee evaluation concluded that the criteria weighed against placing AOD-9604 (free base) or AOD-9604 acetate on the 503A Bulks List, and AOD-9604 is currently listed as Nominated but Withdrawn from FDA Category 2

Your body might not be absorbing the vitamin at a steady rate when you are taking supplements, and thats where a Vitamin B12 shot can help accelerate the process