Unlike others, the absorption of vitamin B12 depends on a protein called intrinsic factor, which is produced in the stomach
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A spokesperson for the NHS told GB News that they would not comment on individual cases but "if theres severe clinical evidence that supports the notion of patient harm, there are alternatives, and as such, if patients do have notable issues, they could receive the injection", adding that NICE can speak directly to the "efficacy of treatments"
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The theory is that gradual dose reduction gives the body time to recalibrate appetite and metabolic signaling, rather than experiencing a sudden return to pre-treatment hunger levels