Vitamin B12 deficiency is a condition for which cyanocobalamin is often given as a treatment (as an injection). This deficiency can occur whenever the patient does not receive adequate amounts of vitamin B12, either caused by lack of proper ingestion, or an impaired absorption for one reason or another.

Symptoms

Amongst the many symptoms that can be caused by vitamin B12 deficiency, the following are several:

Anemia (pernicious or megaloblastic)
Loss of appetite
Neurological symptoms
Shortness of breath
Tingling or numbness in various locations on the body

Please keep in mind that various other symptoms can be present, and a lack of these symptoms also does not mean that the patient does not have such a deficiency.

Causes

Different issues can lead to a vitamin B12 deficiency. Insufficient dietary intake is not common, however, a strict vegetarian diet may lead to it as B12 is not known to be found in any plant products. Simple malnutrition may also lead to the problem.

Some hereditary conditions and malabsorption concerns can also lead to it. For instance, an infection known as giardiasis can lead to it not being absorbed properly. Transcobalamin deficiency is one potential underlying hereditary condition.

Diagnosis and Treatment

A qualified medical professional or doctor can attempt to make a vitamin B12 deficiency diagnosis. At times, a diagnosis can still be made despite the B12 levels in the blood appearing to be normal. Aside from an injectin of cyanocobalamin as mentioned above, various other treatment methods to supplement the B12 include liquid, pill, nasal spray, etc. Generally, cyanocobalamin is used for the malabsorption form of the condition. The underlying cause may also require treatment.

Natural Sources

Vitamin B12 is found in a variety of natural sources. Some of these (in general, not necessarily every case) include eggs, meat, fish, poultry, milk and dairy products, along with others. Supplements and fortified sources like energy bars and cereals can also contain this vitamin.