Vitamin B complex deficiency

Vitamin B complex deficiency

Vitamin B complex deficiency is a condition in which you don't get enough of the eight B vitamins. These vitamins are essential to your body, and their lack of presence can lead to serious health complications. Nursing mothers, those with malabsorption disorders, and those with certain diets are most at risk of vitamin B complex deficiency.

Signs and Symptoms of Vitamin B Complex Deficiency

  • Fatigue
  • Weakness
  • Anemia
  • Loss of appetite
  • Depression or irritability
  • Skin problems
  • Constipation
  • Numbness and tingling in the hands and feet

If you have symptoms of vitamin B complex deficiency, then your doctor may recommend a course of supplements to help you get the vitamins that you are lacking. If they believe that your condition is more serious, they may suggest a full course of tests to determine which B vitamins are deficient and to what degree.

Causes of Vitamin B Complex Deficiency

There are a few things that can lead to vitamin B complex deficiency. In many cases, the cause is dietary related. People who don't eat enough foods with B vitamins, or those who restrict certain food groups from their diets, are more likely to become deficient. Additionally, people with certain health conditions, such as Crohn’s disease or celiac disease, may have difficulty absorbing the required levels of vitamins due to their condition.


Vitamin B complex deficiency is a serious condition that should not be taken lightly. If you are experiencing any of the symptoms listed above, then you should talk to your doctor or nutritionist about your diet and potential for deficiencies. A course of supplements and lab tests can help to identify what you are missing and properly diagnose the condition.