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The recommended daily intake for adults is 2.4 micrograms, but higher doses are also considered safe, as your body absorbs only what it needs, and any excess is passed through urine
PMC 2100429
Cost and what FDA approval changes about your decision This is the part that affects access more than most patients expect, and its worth being clear-eyed about before considering therapy
The body absorbs B12 through a complex mechanism involving intrinsic factor, a protein produced in the stomach
No controlled evidence defines an age threshold for the blend
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