is it legal to inject vitamin b12 yourself How Give Injection + Benefits How to Give B12 Injections
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It plays a role in the synthesis of myelin, a protective sheath that covers and insulates nerve fibers

Subcutaneous injection in cattle and swine, or intramuscular injection in swine, can cause a transient local tissue reaction that may result in trim loss of edible tissue at slaughter

Although the amount of cyanide in cyanocobalamin is small, individuals with compromised detoxification pathways may benefit more from Methylcobalamin
according to the National Academies of Sciences, Engineering, and Medicine, absorption is approximately 50% at 1 mcg but falls to roughly 1.3% at 1,000 mcg
