how often b12 injections vegan Vitamin and Veganism – Sources & Dosage Vitamin B12 Injections: What You
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It is very easy to maintain a healthy level of B12 and the body stores it for quite some time.

Subcutaneous injections (displayed in orange) are best with 1/2- to 5/8-inch needles

Circulation 2016;134:e36786
