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We've carefully formulated the nutrient profile in NOW B-12 10,000 mcg Energy Boost to work synergistically, in order to keep you sharp, focused, and naturally fired-up for hours!* Daily value not established

I guess that your sharing of this article is to make the point that B12 deficiency may have a cause other than pernicious anemia

But those backup vials have expiration dates too

Therefore, while existing evidence supports low local toxicity, comprehensive in vitro and in vivo immunogenicity testing remains advisable prior to clinical translation [71, 191]

One study noted that B12 supplements, along with folic acid, improved symptoms of neuropathy in patients treated with certain chemotherapy agents

Cognitive clarity and brain protection occur because glutathione crosses the blood-brain barrier