Check the dosage. Adults usually take around 300mg of thiamin. Take magnesium with thiamin. 300mg is usually what adults take. Get a nutrition test such as the Spectracell Micronutrient Panel. Stop consuming vegetable oil (canola, corn, soy, safflower, sunflower), caffeine, and chocolate.
Adjust the delay correctly: 50-60ms for normal speaking rates. 60-80 ms for "slow normal" speaking rates. 100ms or longer should only be used with fluency shaping therapy (slow, prolonged speech). Try a better DAF device. Some DAF devices and phone apps sound awful. Combine FAF with DAF. FAF pitch shifts around -0.5 octaves (a half [...]
Find a stuttering specialist who uses evidence-based practice (EBP). Speech-language pathologists (SLPs) are trained to be generalists, not specialists. They might have had a one semester course on stuttering, or a half a semester, or no classes on stuttering. You might be the first stutterer they've ever seen. EBP means using treatments that have been [...]
Combine fluency shaping therapy with DAF. Fluency shaping was developed from DAF therapy. Fluency shaping alters your brain's speech motor control. DAF alters both speech motor control and auditory processing. You need both. Increase force and volume. Read a motor learning and control textbook. You'll learn that motor learning (physical therapy, occupational therapy, sports coaching) [...]
No prescription medications have been found to have more than marginal effects on stuttering. Many have side effects, sometimes severe. For more information see our free e-book Medications for Stuttering. Thiamin and magnesium have been proven effective in two small studies. For more information see our blog post Should Stutterers Take Vitamin B-1?
The first evidence-based stuttering treatment—proven effective in a scientific study—was delayed auditory feedback (DAF), in 1965. With DAF a stutterer hears their voice delayed in headphones a fraction of a second. The delay is adjusted to control the stutterer's speaking rate. Short delays reduce stuttering about 70% at a normal speaking rate. Longer delays are [...]