Yes, it is possible to have low levels of B12 without having anemia. B12 is a vitamin that is essential for the growth and development of red blood cells. It is also important for the proper functioning of the nervous system, gastrointestinal system, and for energy production.
When someone has a B12 deficiency, they may experience symptoms such as fatigue, weakness, anemia, poor memory, depression, and difficulty concentrating. These symptoms may be caused by a lack of red blood cells, which are dependent on B12 for their production. This can lead to anemia, which is a condition characterized by a decrease in the number of healthy red blood cells.
However, it is possible to have low levels of B12 without having anemia. This is because B12 is also involved in the production of white blood cells and cell metabolism, as well as other important processes in the body. A deficiency in B12 may lead to symptoms such as fatigue, weakness, poor memory, and difficulty concentrating, but anemia may not be present.
In summary, it is possible to have low levels of B12 without having anemia. While a deficiency in B12 may lead to symptoms such as fatigue, weakness, poor memory, and difficulty concentrating, anemia may not be present. Therefore, it is important to get tested for B12 levels if you are experiencing any of the symptoms mentioned above, regardless of whether or not you have anemia.