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Because B12 is water-soluble, your body uses what it needs and passes most of the excess, and there is no established upper intake limit because harmful effects from high intake have not been well documented
DIY kits carry risks of improper needle handling, accidental nerve irritation, or incorrect dosage that professional supervision avoids
Just one quick shot can help
The standard regimen is hydroxocobalamin 1 mg intramuscularly every three months indefinitely
This is completely painless even though the pad is wet and cold like the jelly used during an ultrasound
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