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[2] Long-term follow-up: Once stable on maintenance therapy, routine blood monitoring is not usually necessary unless new symptoms develop
They can help determine the best course of action for addressing your B12 levels and overall health
While the NIH does not specify a tolerable upper intake level for vitamin B12, a study published in the JAMA Network Open found that high intakes of vitamin B12, such as from daily supplementation of 25 micrograms or higher, increased the risk of bone fracture [3] [4]
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