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Before making any changes to your treatments, please consult with your healthcare provider to discuss the appropriateness and safety of such changes

This makes them especially beneficial for individuals who may have trouble absorbing B12 from food or oral supplements

And because anywhere from 1 to 5 mg can be stored, a deficiency that develops from inadequate intake or absorption can take months to years to develop 4

They can enhance the effects of lifestyle changes

After stomach or intestinal surgery: After procedures such as stomach reduction or the removal of parts of the intestine, the natural absorption of B12 is often permanently impaired