b12 injection best site Instruction Guide for Intramuscular (IM) Self-injection of Methylcobalamin 1mg/5mg B12 vitamin Store how do
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I don't know for sure the cause of my deficiency

Monitor ferritin levels and supplement if needed

hydroxocobalamin is longer-acting and is the cyanide antidote

Vitamin B12: Often called the energy vitamin, B12 is absolutely essential for your metabolism
Extra nutrients that work well with vitamin B12
Increased risk of prostate cancer