lump at injection site after b12 shot Hard and slight bruise inj What happens if you inject

Oral administration of high-dose vitamin B 12 (1 to 2 mg daily) is considered as effective as intramuscular administration for correcting anemia and neurologic symptoms Despite many studies suggesting oral administration of vitamin B 12 to be easy, effective and less costly than intramuscular administration, debate surrounds the effectiveness of the oral route

Unlike oral supplements, which may not be well-absorbed, vitamin B-12 injections deliver this essential nutrient directly into the bloodstream for maximum absorption and fast results

That option is expensive in the long term

Why would anyone need Vitamin B12, or want to give themselves B12 shots

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