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Vitamin B12, or cobalamin, is naturally found in animal foods
B12 (cobalamin) supports red blood cell formation, nerve health, and the conversion of food into cellular energy
To treat a vitamin B12 deficiency, vitamin B12 is injected intramuscularly usually in the shoulder area
Importantly, these effects occurred at rates similar to placebo groups, suggesting that many cases represented background occurrence rather than treatment-specific effects
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