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Pernicious anemia is the most common cause of clinically evident vitamin B 12 deficiency worldwide. [14] Pernicious anemia due to autoimmune problems occurs in about one per 1000 people in the US. Among those over the age of 60, about 2% have the condition. [8] It more commonly affects people of northern European descent. [2]
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 ...
A B12 deficiency can cause issue ranging from exhaustion to neurological problems. ... pale skin. heart palpitations. loss of appetite. ... Vitamin B12 does also accumulate in a few plant-based ...
Look for these warning signs of vitamin B12 deficiency. You could be experiencing both mental and physical symptoms. ... Causes. Eating a diet devoid of any animal products, fortified plant-based ...
Vitamin B 12 deficiency can be determined, but not always. [14] This means it measures forms of vitamin B 12 that are "active" and can be used by the body, as well as the "inactive" forms, which cannot. [151] Vitamin B 12 deficiency can be found within normal levels, so clinical symptoms should be taken into account when a diagnosis is made. [2]
Megaloblastic anemia, the most common cause of macrocytic anemia, is due to a deficiency of either vitamin B 12, folic acid, or both. [81] Deficiency in folate or vitamin B 12 can be due either to inadequate intake or insufficient absorption. Folate deficiency normally does not produce neurological symptoms, while B 12 deficiency does.
The lack of nutrients in the diet, or the lack of a balanced diet, can contribute to the discoloration of the area under the eyes. It is believed that iron deficiency and vitamin B 12 deficiency can cause dark circles as well. [7]
Vitamin b12 deficiency can cause mood swings and tiredness. And no, you don't need to be a vegan to deal with this problem.