Vitamin B-1 (thiamin) plays a critical role in the body by aiding in the metabolism of carbohydrates, certain amino acids, and alcohol. It also contributes to the synthesis of the neurotransmitter acetylcholine and helps with the detoxification of alcohol and lactic acid. Furthermore, thiamin is essential for energy and ATP production from reactions in the Krebs cycle. Those with a high carbohydrate diet, strenuous physical exercise, or chronic alcohol consumption may especially benefit from supplementing with Vitamin B-1.*