Anemia is a condition that is caused by a deficiency of red blood cells or hemoglobin in the body. As a result, the body does not have enough oxygen-carrying red blood cells to function properly. B12 is important for the production of healthy red blood cells, and because of this, B12 deficiency can be a cause of anemia.
If a person is anemic, then it is likely that their B12 levels are low. However, it is possible for a person to have high B12 levels while still being anemic. This is because anemia can be caused by a number of different factors, including iron deficiency, folic acid deficiency, and chronic disease.
When a person is anemic, their doctor may order a blood test to measure their B12 levels. If the B12 levels are low, then the doctor may recommend supplementation or a diet change to increase B12 intake. Additionally, if the anemia is caused by a B12 deficiency, then a doctor may prescribe B12 injections to quickly raise the levels of B12 in the body.
In conclusion, B12 can be high in anemia, but it is more common for B12 levels to be low in anemic patients. If a person is anemic, then B12 levels should be measured with a blood test to determine if B12 supplementation is necessary.