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The most common reason someone would need to have their vitamin B12 levels checked is to evaluate for vitamin B12 deficiency, says Mike Ren, MD, assistant professor of family and community medicine at Baylor College of Medicine
But this is where caution matters
[18] [19] The US FDA at the end of 2006 approved the use hydroxocobalamin as an injection for the treatment of cyanide poisoning
A consultation does not guarantee treatment
Its better to know what your body really needs than to guess
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