Up to 80% of people with severe alcohol use disorder become vitamin B1 or thiamine deficient. Men die from alcohol illnesses at a much higher rate than women, but the gap is closing as women drink ...

impeding the liver's ability to properly metabolize and store this vitamin. Similarly, alcohol disrupts the absorption of other B vitamins, such as B1 (thiamine), B6 (pyridoxine), and B9 (folate ...