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Some people lack vitamin B carrier (intrinsic factor) and have a condition called Pernicious anaemia
It's important to note that the benefits of B12 injections are not permanent, and regular injections may be necessary to maintain optimal B12 levels in the body
No controlled evidence defines an age threshold for the blend
It was proved that oral 1,000 mcg of B12 is only absorbed by 1.3% of the body, but the absorption rates of B12 shots are between 55% to 97%
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