According to the findings of neurology of Loyola University, deficiency of vitamin B1 can cause a potentially fatal disease of the brain – Wernicke encephalopathy.
Symptoms may include confusion, hallucinations, loss of muscle coordination and problems with vision such as double vision and involuntary eye movements, coma. According to experts, this condition without any treatment may lead to irreversible brain damage and death.
A wide range of brain diseases, which include this type of encephalopathy caused by metabolic disorders and toxic substances. Lack of thiamine is one of the factors of nutritional deficiencies that can cause this type of brain disease. Neurologists say: "in the absence of treatment, deficiency can lead to irreversible brain damage with an estimated mortality of 20 percent."