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It is also particularly valuable for patients who may have issues with their digestive system that may make other forms of increasing their B12 levels, such as pills and food, less effective
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They are not medicines, foods, cosmetics or dietary supplements, and are not authorised or evaluated by the MHRA, FDA, EMA or any other medicines regulator
Key Takeaways Metformin is one of the few commonly prescribed medications consistently linked to vitamin B12 deficiency
