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Vitamin B12 shots improve cognitive function and reduce the risk of dementia or Alzheimer's disease

Registered NurseRegistered NurseExpert AnswerCommon side effects of injections include mild, local reactions, or irritation at the site of injection, and/or pain, bruising and redness of the skin

You have digestive issues such as Crohns or Celiac disease

Your doctor should perform follow-up blood tests (checking B12 and methylmalonic acid levels) a few months after switching to confirm the oral dose is effectively maintaining your levels [15] [16]

They can also help treat B12 deficiency

Is injection technique optimal