List Of Symptoms Of Vitamin B12 Deficiency

Vitamin B-12 is a water-soluble vitamin that is necessary for the development of healthy red blood cells. Causes of vitamin B-12 deficiency include tapeworms, bowel abnormalities, alcoholism and a deficiency of a substance called intrinsic factor that is normally produced in the stomach. A vegan diet, a vegetarian diet and a diet that is devoid of dairy products can also cause a vitamin B-12 deficiency, according to the text, "Medical-Surgical Nursing." This deficiency causes neurological problems, gastrointestinal problems and anemia -- a lack of healthy red blood cells.

Fatigue

Fatigue is a symptom of vitamin B-12 deficiency. You may easily become tired and feel short of breath when you exert yourself. You may feel dizzy or lightheaded when you stand up suddenly from a sitting or lying position.

Poor Appetite

You may develop a poor appetite as a result of this deficiency, explains Medline Plus. Weight loss may result over time.

Swollen Tongue

A bright-red swollen tongue is a sign of vitamin B-12 deficiency. The tongue is usually sore and may appear smooth. Sometimes, the entire mouth feels sore, relates the Linus Pauling Institute.

Pale Skin

Like other types of anemia, the anemia caused by vitamin B-12 deficiency can cause pallor, or pale skin. The skin may also develop a slight yellow or orange tint as a result of this nutritional deficit, according to "Medical-Surgical Nursing."

Constipation

A vitamin B-12 deficiency can cause constipation. In contrast, diarrhea can also become a troubling symptom of this disorder.

Tingling Legs

As the vitamin B-12 deficit begins to affect the neurological system; tingling of the legs or feet may occur. Occasionally, this strikes the hands and arms. Some individuals experience numbness or a crawling sensation rather than tingling.

Unsteady Gait

You may notice an unsteady gait or difficulty walking. You may lose your balance or feel uncoordinated while trying to perform tasks.

Mental Status Changes

Uncorrected vitamin B-12 deficiency can make you feel depressed or moody. You may suffer memory loss, according to the Linus Pauling Institute. You may have difficulty concentrating on work and feel confused. Those around you may notice that you seem disoriented. Eventually, dementia may develop.