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The Oxygen Shortage and Your Heart's Response When your body's tissues are starved for oxygen, your heart gets an urgent signal to step up
Diet-Related Low B12 Some patients have low B12 because they do not get enough from their diet
PubMed laboratory research record [PMID: 8432011] PubMed record related to this compound for laboratory literature review
People with Certain Medications: Long-term use of medications like proton pump inhibitors or metformin can interfere with B12 absorption, leading to a deficiency
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