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how often can b12 injections be taken Vitamin Injections: What You Need To Know How Long Does a B12
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Frequently Asked Questions What Does A B12 Injection Do For You

Does increased oxidative stress cause hypertension

High-dose B12 supplements, even 1,000 mcg daily, are generally safe because the body uses what it needs and excretes the rest

doi: 10.1038/nbt831
