Yes. Its had a profound effect, really! Please try buying a B-complex of active Bs.BUT we should know, that, even IF we found a cure, we have been stuttering for so many years that our brains probably wouldnt know if we got "cured". The last days I have noticed that even if I dont "feel" the block in my brain/throat whatever, I stutter anyway, because of the HABBIT. If I just talk nowdays I dont stutter! Im really hoping im on to something here. So please my stuttering brother, can you try Methylated Bs? Like a complex of them all.