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In rare cases, B12 can cause diarrhea, peripheral vascular thrombosis, itching, transitory exanthema, urticaria, feelings of swelling of the whole body
When treated with vitamin B12 (intramuscular injection), vitamin B12 levels normalized, and moreover, visual functioning improved in all 3 children
Vitamin B12 supports the bodys ability to convert food into usable energy by aiding in the production of red blood cells and supporting oxygen transport throughout the body
Found in bone marrow, fat tissue, and various other locations