What did you use the gluthiamine for?
About 6 years ago, my GD was quite sick with leaky gut, she was sent some glutathione and she improved very fast.
I thought well heck I am going to try this, low dose 250, and I tell you what it straightened up bowel problems I had.
Been taking it ever since especially since your body does not produce very much after 65, going to be 75 in a few months and feel great.