b12 injection sub q or im subq sites Instruction Guide for Intramuscular (IM) Self- injection of B12 Methylcobalamin 1mg/5mg b12 injection subcutaneous vs intramuscular

Quick refresher: what B12 actually does Vitamin B12 (cobalamin) is a water-soluble vitamin involved in red blood cell formation, nervous system maintenance, and the methylation reactions that support energy metabolism

This is not equivalent to the FDA granting approval as a therapeutic drug, and it carries no standing under UK or EU medicines law

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I wouldnt count on sources like seaweed, spirulina, or soil. I hear people that likely do need to supplement with B12 say that theyre OK because they eat foods that may include B12, but they can be unreliable sources, such as sea vegetables or nutritional yeast, says Ginger Hultin, MS, RDN, CSO, a lifelong vegetarian, chair of the VNDPG, and spokesperson for the Academy