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b12 injections sore arm Vitamin Best Vitamin B12 Injection Site:
Description
This means that unexplained, persistent high B12, especially when it is not caused by supplements, should not be ignored
How do Vitamin B12 Injections work
One user captured the confusion and concern many feel: "My dr says that being on MJ makes it harder to absorb B12
(PubMed) Cheng Y, Willett WC, Schwartz J, Sparrow D, Weiss S, Hu H
Others need them a little more often at first
