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Hi, folks. My friend was administrated to the hospital due to some examinations. I think the doctors suspect on vitamin B12 deficiency. I would like to know what the first symptom of this deficiency is. Can anyone help me with more details? I would appreciate all your replies. Thanks in advance, guys.

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Hi. The lack of vitamin B12 leads to pernicious anemia. However, first signs are related to mental problems. A person often complains to tiredness. Mental work capacity is decreased. Concentration and working memory are also decreased. Some even complain on irritability or depression. Later, other symptoms develop. I hope this helps. Bye!
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Vitamins and minerals are micronutrients: substances required in small amounts that are nevertheless vital for normal growth, body function, and health.
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