Results vary by individual
Its unapproved status with the FDA means there is no conclusive consumption measure
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This has led to the nickname wolverine stack, reflecting the potential for accelerated recovery
There is also a longevity fervor now, with longevity clinics, longevity companies (recently reviewed here), and longevity doctors
The Institute of Medicine reports that no adverse effects have been associated with excess vitamin B12 intake from food and supplements in healthy individuals. However, if youre not deficient in vitamin B12 to begin with or you dont address the underlying reasons you might be deficient, injections likely wont do much to improve overall quality of life