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Product Details Methylcobalamin B12 Injection 2500mcg | High Strength Vitamin B12 Injection Methylcobalamin B12 Injection 2500mcg is a high-strength vitamin B12 injection designed to support energy metabolism, nervous system health, and healthy vitamin B12 levels

Source: FDA briefing document, July 2026

doi:10.1001/jama.2010.490 Institute of Medicine

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Teens and adults should have 2.4 mcg of vitamin D, and the National Institute of Health recommends that pregnant women should have 2.6 mcg and breastfeeding women 2.8mcg

Small variations can occur depending on rounding conventions, but the underlying math is identical