feeling worse after b12 injection Why do I feel a injection? Why Do I Feel Worse
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The clinic provides primary and preventive care services and helps patients discuss their individual health needs

Alcohol can interfere with the absorption of vitamin B12, reducing the effectiveness of the treatment
The data showed higher prevalence of anemia and cognitive impairment in those participants with vitamin B-12 deficiency [defined as serum vitamin B-12 concentration 1594 nmol/L) was associated with lower Mini-Mental State Examination (MMSE) scores than seen with low vitamin B-12 status in combination with nonelevated RBC folate (24)

Its not routinely tested and even when tested the lower end of the reference range is inadequate for defining deficiency status