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how much b12 should a human take via injection Best Vitamin Site: Administering B12 Shots Vitamin B12 Injection Dosage: 7
Description
16 weeks 11 vials Covers a 4-week 300 mcg lead-in plus 12 weeks at 500 mcg

First, routine screening for vitamin B12 deficiency should be incorporated into primary care for high-risk populations such as older adults, women of reproductive age, vegetarians, and patients with diabetes or chronic use of metformin or proton pump inhibitors

Henry RR, Abrams L, Nikoulina S, Ciaraldi TP

J Clin Endocrinol Metab 90:59375941
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