Vitamin B1 is essential in maintaining healthy nerve function and is crucial for converting carbohydrates into energy in the body. It is commonly used in dietary supplements to prevent or treat vitamin B1 deficiency, which can lead to conditions like beriberi or Wernicke-Korsakoff syndrome. In the food industry, it is added to fortified foods such as cereals and bread to enhance nutritional value. Additionally, it is used in medical treatments to support patients with metabolic disorders or those recovering from alcoholism, as alcohol consumption can deplete vitamin B1 levels. Its role in energy metabolism also makes it beneficial for individuals with high physical activity levels or those experiencing fatigue.