More than 70% of people over the age of 50 are thought to suffer from some form of vitamin b12 deficiency.  When this occurs your body is being deprived of an essential vitamin.  B12 is needed in order for your body to make red blood cells.  Therefore when your body does not have enough vitamin b12 it can lead to anemia. Red blood cells are critical as they carry oxygen through the body.  A person with vitamin b12 deficiency may feel very lethargic, weak, and tired.  There are different methods for a person to receive vitamin b12 such as through vitamin b12 injections or using vitamin b12 patch.  The b12 patch is very convenient for people rather than having to get monthly b12 shots all the time.  With the B12 patch they can avoid all the hassles associated with getting b12 shots.

Vitamin B12 Deficiency

Vitamin B12 is the only vitamin that is not known to have toxic effects even when taken in large doses. Patients with anemia have been given 1,000 mcg monthly injections to treat vitamin B12 deficiency without any side effects. However, for healthy individuals, large doses of vitamin B12 are not recommended. Healthy adults get enough of this vitamin from a balanced diet. Healthy adults are recommended to take one multivitamin daily that contains vitamin B12. Those at risk for vitamin B12 deficiency include the elderly and vegetarians. The elderly are at risk for atrophic gastritis, and vegetarians often need supplementation because vitamin B12 is found only in foods from animal products. A strict vegetarian diet which prohibits consumption of animal products can result in vitamin B12 deficiency.

Additional Supplementation

Patients with anemia cannot absorb vitamin B12 from food or oral supplements. Therefore, vitamin B12 injections are usually required to correct anemia and to prevent irreversible neurological damage. Patients who have had surgical removal of the stomach lack intrinsic factor which is produced in the stomach, so they cannot absorb vitamin B12 from food or supplements. Patients with resection of the small bowel may not be able to absorb vitamin B12 from food and supplements. Patients with a condition of food allergy to gluten that leads to atrophy of the small bowel lining may also not be able to absorb vitamin B12 from food and supplements. Also, some medications affect the absorption of vitamin B12 in the body. For example, medication used to control blood glucose levels with type II diabetes, treatment used to lower blood cholesterol levels, and also some medications used to control unexplained diarrhea have been known to inhibit the absorption of vitamin B12 from food.