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After the initial phase, your treatment will depend on whether your vitamin B12 shortage is caused by your food or whether it is resulting in any neurological issues, such as issues with thinking, memory, and behaviour
Liu, W.-L
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doi: 10.1111/jgs.15767 541 National Institute for Health and Care Excellence - NICE, Chronic fatigue syndrome/myalgic encephalomyelitis (or encephalopathy): diagnosis and management (2007)
This is generally beneficial (neuroprotection, improved mood regulation), but it can cause temporary neurological side effects in some users, particularly during the first week of use
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