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Symptoms of deficiency include fatigue, weakness, neurological problems (such as paraesthesia, balance difficulties, and cognitive impairment), and megaloblastic anaemia
Subcutaneous B12 Injection Sites Subcutaneous B12 injections are less common yet still effective in treating B12 deficiencies
References: National Institute for Health and Care Excellence (NICE)
Chronic stress and alcohol abuse may also indirectly affect B12 levels
Researchers should note that these compounds are for laboratory research use only
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