how long before b12 injection takes effect Vitamin Injections: What You Need To Know How Long Does a Vitamin
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This is especially common for vegetarians, older adults, and those with absorption issues
An investigation into a proprietary Vitamin B12 preparation derived from Streptomyces griseus fermentation liquors found that side effects warranted further inquiry to determine the exact cause
It also plays a role in neurotransmitter production, affecting mood and cognition
Deficiency is also prevalent in seniors because the capacity to absorb vitamin B12 can diminish with age
Published online April 23, 2013
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