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Mayo Clinic Staff
research shows no additional benefit above 1 mg daily Important: Doses above 1 mg (1,000 mcg) daily showed no additional metabolic benefits in clinical research
For subcutaneous injections, pinch the skin and poke the needle in at a 90-degree angle, almost like you're throwing a dart, so it barely goes beneath the surface
What does a B12 shot do for you
Clinical trials
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