Abstract
Nutritional deficiencies are not uncommon. Therefore, we must understand whether nutritional deficiencies
can cause cognitive disorder. Wernicke-Korsakoff encephalopathy (WKE), which occurs as a result of thiamine
deficiency, pellagra due to nicotinic acid deficiency, malignant anemia, which occurs as a result of vitamin B12
deficiency, and diabetic coma due to hypoglycemia, can all lead to cognitive disorder. We must treat these disorders
at the appropriate time, in order to prevent the cognitive disorder from becoming chronic.
In this article, we consider WKE. WKE is a metabolic disease that is treatable, when diagnosed in the early
stage. In the general setting, it is difficult to diagnose WKE appropriately. Therefore, we must determine whether
this nutrition deficiency can contribute to the development of this treatable cognitive disorder.
