--though in the last several years I had switched to R-lipoic so I could take less. I went from 600mg alpha-lipoic to 50mg R-lipoic each day, as I found the large amount of alpha made my stomach more acidy than I was comfortable with. The R-lipoic is still acidy, but taking it with food mitigates that.

I take so many things that it's hard to parse out the effects of the lipoic individually, but I do remember getting fewer burning sensations on it than not. I also believe it has helped with blood sugar stabilization--I am not diabetic, but I am insulin-resistant with some degree of reactive hypoglycemia if I don't balance carb intake with protein and fat, and I seem to have more of an even blood sugar response on lipoic.