Thiamine (Vitamin B1) deficiency

Thiamine, or Vitamin B1, is essential for converting food into energy and supporting nerve function. A deficiency can occur due to poor diet, excessive alcohol consumption, or certain medical conditions. Symptoms include fatigue, irritability, confusion, and muscle weakness. In severe cases, it can lead to Wernicke-Korsakoff syndrome, a serious brain disorder. This condition is common among people with chronic alcoholism. To prevent deficiency, it's important to consume foods rich in thiamine, such as whole grains, legumes, nuts, and meats. Diagnosis and treatment typically involve dietary changes and, if necessary, thiamine supplements.