Risk Factors Associated With A Vitamin B12 Deficiency

Vitamin B12 deficiency is a condition in which a patient does not have enough vitamin B12 in their blood. Even a mild deficiency in vitamin B12 affects an individual's quality of life, causing fatigue and mental fog. A more severe deficiency can lead to problems with heart and brain function. Some causes of vitamin B12 deficiencies are dietary, in which case the problem is easily solved through supplementation or a diet plan. Other causes are more insidious and include things like autoimmune diseases and parasitic infections. Usually, medical conditions that cause vitamin B12 deficiency involve problems with absorbing nutrients properly.