Symptoms of Vitamin B12 Deficiency

Vitamin B12 deficiency can cause a broad array of symptoms. Those who suspect they may have vitamin B12 deficiency should talk to their doctor about being tested. Symptoms include:i
- Weakness and fatigue
- Light-headedness and dizziness
- Palpitations and rapid heartbeat
- Shortness of breath
- A sore tongue that has a red, beefy appearance
- Nausea or poor appetite
- Weight loss
- Diarrhea
- Yellowish tinge to the skin and eyes
- Numbness and tingling in the hands and feet
- Difficulty walking
- Memory loss
- Depression
[1] National Institutes of Health. Vitamin B12 Fact Sheet for Consumers. Accessed November 2014. http://ods.od.nih.gov/factsheets/VitaminB12-Consumer/.