b12 loading injections Shot Guide: Benefits, Dosage & Side Effects B12 Injections | Vitamin B12

Thats because your body only absorbs as much of the nutrient as it needs

This means its essential for cell rejuvenation, controlling our metabolism and regulating our sleep patterns

It is dispensed in amber multidose vials containing 1,000 mcg/mL and compounded for use under either section 503A or 503B, allowing clinicians to individualize therapy for deficiency states ranging from pernicious anemia to postsurgical malabsorption

Put simply, I don't believe the B12 result, and in my lab, I never saw a result of zero for B12

Your body can't store it for long, so it's a vitamin you need to consume regularly in some form