Hello, greetings from australia, how much b1 should I take daily (mg's)? I currently drink 20-30 standard drinks -daily-. Thanks for your help, aaron.

Very little needed. Daily requirements of thiamine ( vit b 1) in men 1.8 mg woman 1 mg , usual one a multi vitamin will have 50 mg , always safer to take one a day multivitamin , rather than depending on drinks , with balanced diet deficiency rarely occurs, so don't worry.