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[6] [15] [26] Vitamin B 12 deficiency can also cause symptoms of mania and psychosis. [27] [28] Among other problems, weakened immunity, reduced fertility and interruption of blood circulation in women may occur. [29] The main type of vitamin B12 deficiency anemia is pernicious anemia, [30] characterized by a triad of symptoms:
Pernicious anemia is the most common cause of vitamin B 12 deficiency anemia in adults, which results from malabsorption of vitamin B 12 due to a lack or loss of intrinsic factor. [2] [8] There are relatively few studies which have assessed the impact of haematological measures in response to B 12 supplementation.
Other symptoms of vitamin B12 deficiency include memory loss, fatigue and weakness, nerve damage causing numbness and tingling in the arms and legs, dementia, depression, and seizures.
Severe vitamin B12 deficiency is most commonly caused by an autoimmune mediated deficiency in intrinsic factor. Rarely, a mutations in the gene CUBN, coding for cubilin, or AMN, coding for amnionless cause an autosomal recessive form of vitamin B12 deficiency, known as the Imerslund-Gräsbeck syndrome. Cubilin and amnionless also play a role in ...
Look for these warning signs of vitamin B12 deficiency. You could be experiencing both mental and physical symptoms. ... Most supplements have far more than the 2.4 mcg recommended for adults, but ...
Several factors can cause a person to have classic signs of dementia, including a deficiency in vitamin B12. ... Most adults need 2.4 micrograms of vitamin B12 a day, although the numbers are ...
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