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Injectable forms bypass absorption issues entirely and work regardless of stomach acid or intrinsic factor status
FDA-approved versions of the drugs are manufactured and packaged under tightly controlled conditions designed to preserve that stability through shipping and storage
No detectable levels of heavy metals including arsenic, cadmium, cobalt, lead, nickel, mercury and vanadium
Frequently Asked Questions What is the best B12 vitamin for seniors
High blood levels of homocysteine pose a risk for vascular and cognitive health
Both bypass the gut, so both produce strong serum levels
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