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vitamin b12 injection subq or im How to Give Injections at Home to Yourself · PA Relief Instruction Guide for Intramuscular (IM)
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For observational studies reporting serum vitamin B12 levels, the certainty of evidence was upgraded from low to moderate due to the large and consistent magnitude of effect across studies, despite heterogeneity

The best way to avoid the potential side effects of too much vitamin B12 is to get the majority of your vitamin B12 from nutrient-rich food sources, including meat, poultry, seafood and dairy products

This helps use B12 supplements right and manage B12 deficiency well

Caused by the damaged nerves that send abnormal signals to the brain, this disorder can go on for months or even years after they've recovered from the ailment
