how to give myself b12 injections Instruction Guide for Intramuscular (IM) Self-injection of Methylcobalamin 1mg/5mg B12 Injections at Home -

Some people may experience relief by replenishing vitamin B levels , while others may not see much improvement

Precautions Key safety points include proper needle disposal and site care

If you have a known vitamin B12 deficiency, then investigation of the cause and any replacement should be conducted by a GP or a wellness practitioner

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Individuals with Gut Absorption Issues : Conditions like Crohn's disease, celiac disease, or pernicious anemia (an autoimmune condition where the body can't produce intrinsic factor, a protein needed for B12 absorption) can significantly impair B12 uptake

I think we can safely say the overwhelming answer would be (b)