If you're not getting enough vitamin B12 from food, a supplement can help fill the gap. Here's what experts recommend for taking it. See link below Treating Severe Vitamin B12 Deficiency B12 IM Injection Best Vitamin B12 Injection Site: Administering B12 Shots Vitamin B12 Oral Spray Fast Absorption BetterYou B12 vitamin Store Intramuscular vs Subcutaneous Injections for vitamin B12 supplements.
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how to inject b12 subcutaneously Nutrasal, LipoZome B, 2 fl oz