can i inject vitamin b12 subcutaneously Best Injection Site: Administering B12 Shots Vitamin C and B12 Injection
Description
Individuals with certain allergies, liver conditions, or kidney disease, or those who are pregnant or nursing, should consult a physician before starting any injection protocol

When you inject it, it goes straight into the bloodstream so its available to your cells right away

People who have a severe deficiency may need a 5000mcg amount

( 11 ) However, if youre severely deficient in Vitamin B12, it may take several weeks to fully restore your levels and feel the cumulative benefits
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