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How to Administer a B12 injection to Yourself There are two ways to self-inject vitamin B12: Subcutaneously, or just below the skin, and intramuscularly, which goes directly into the muscle, says Foxx
The frequency of administration depends on the severity of the deficiency
Our guides on foods to avoid on peptide therapy and best foods to eat on GLP-1 compounds provide specific dietary recommendations
It is equally important to be precise about where each compound sits on the evidence ladder
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