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This causes the body to produce antibodies that attack a protein called intrinsic factor essential for B12 absorption
This is like the situation where the vitamin solution was exposed to too much light its just less effective
The other consistent context in the preclinical literature is a metabolic environment the mouse studies pair the compound with diet/energy-balance conditions rather than testing it in isolation
Low B12 anemia will leave you feeling fatigued and winded
If you increase dose and change timing simultaneously, you cannot determine which change affected results
However, persistently high serum B12 levels warrant medical investigation, as they may indicate liver disease, kidney dysfunction, or haematological disorders rather than simple overconsumption
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