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It is also an important part of how enzymes in the body break down substances like fats, protein and carbohydrates into energy
Its also reasonable to check the level if youve been on medication to reduce stomach acid for a long time
Both intramuscular injections and sublingual supplements have been shown to effectively correct vitamin B12 levels in these patients
However, the general consensus has been that people who have used out of date ampoules - and there are several of us - and various scientists on the group, suggest that glass ampoules are a biologically safe way of storing the fluid and will stop pathogens getting in
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