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Rapid improvement in energy and concentration
8 9 The consequences of mild or subclinical vitamin B 12 deficiency are less clear but it has been shown to be associated with decreased cognitive performance in both the elderly and children
However, many patients find that regular injections are the best way to maintain results
The most common cause of vitamin B12 deficiency in the UK is pernicious anaemia, which is not related to your diet
Symptoms can include fatigue, weakness, numbness or tingling in the hands and feet, difficulty walking, memory issues, and anemia
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