What’s the deal with vitamin B12?
There are eight B vitamins, and all of them give your body energy by helping to convert food into fuel. Vitamin B12 is especially important in producing DNA and maintaining healthy nerve and blood cells. One way it protects blood cells is by preventing megaloblastic anemia, a condition that reduces the amount of oxygen your red blood cells can carry. The recommended daily amount of B12 is 2.4 mcg, and most people consume that much naturally by eating healthy amounts of protein. A deficiency occurs when vitamin B12 isn’t a regular part of someone’s diet or when someone can’t absorb the nutrient properly.