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But, despite the vitamin's importance, between 1.5% and 15% of the general US population is deficient in B12. A B12 deficiency can cause symptoms like fatigue and constipation and could even lead ...
“A B12 deficiency can cause physical and neurological symptoms, and research is also growing to support that it can also cause psychological issues as well,” says Shapiro. ... Treatment. First ...
Lack of vitamin B12 can cause megaloblastic anemia—a condition characterized by larger than normal red blood cells in a smaller than normal amount. This causes fatigue, paleness in the skin ...
6% (< 60 years old), 20% (> 60 years old) [4] Vitamin B12 deficiency, also known as cobalamin deficiency, is the medical condition in which the blood and tissue have a lower than normal level of vitamin B 12. [5] Symptoms can vary from none to severe. [1] Mild deficiency may have few or absent symptoms. [1]
[6] [14] [25] Vitamin B 12 deficiency can also cause symptoms of mania and psychosis. [26] [27] Among other problems, weakened immunity, reduced fertility and interruption of blood circulation in women may occur. [28] The main type of vitamin B12 deficiency anemia is pernicious anemia, [29] characterized by a triad of symptoms:
If the symptoms are serious, frequent injections are typically recommended initially. [7] There are not enough studies that pills are effective in improving or eliminating symptoms. [12] Often, treatment may be needed for life. [13] Pernicious anemia is the most common cause of clinically evident vitamin B 12 deficiency worldwide. [14]