Among the most indispensable qualities of vitamin B12 is its involvement in red blood cell production and iron absorption.
This is extremely key in the prevention of anemia because with vitamin B12 deficiency, healthy small and round red blood cells become larger and oval. Thus, they cannot move from the bone marrow into the blood at the required speed and cause megaloblastic anemia.
In anemia, the body has a shortage of quality red blood cells to transport oxygen to vital organs and tissues.
It is the insufficient oxygen that causes symptoms of fatigue, weakness, dizziness, memory and concentration problems.
It is often assumed that iron deficiency is the cause of the development of anemia, but the truth is that in a very large proportion of cases this health problem is due to vitamin B12 deficiency.
All the B vitamins play an essential role in energy production in the body.
In fact, one of the most common early signs of vitamin B12 deficiency is precisely fatigue and lack of energy.
If a person has a significant vitamin B12 deficiency, taking a supplement, or increasing his intake will likely improve his energy level.