I’ve been taking B1 on and off for about a year without noticing any obvious benefits. I have to admit though that my professional and a patient’s behavior patterns are quite different. For a scientist it’s a norm to separate variables and establish all kind of controls. As a patient I am starting “new life on Monday “ fiercely throwing all means together: supplements, diet, exercises and so on. Couple of months ago I run out of B1 and decided it was time gracefully end not working relationships. Within next month things went noticeably worse. I hoped it was a fluctuation after our vacation; but there were no improvement. I ordered a new bottle from Solgar.
Improvement started immediately after 1.5 g in the morning. Hard to believe. I am taking 2x1.5 g a day. The improvement leveled, it’s not that dramatic as on a first day. But it’s a good, solid improvement compared with those couple of months without B1.