Very likely CBD cannabis will help with stuttering but there are no clinical trials to prove this, that I am aware of at this time.
Since stuttering tends to include anxiety, distress and low self-esteem in addition to the spasmodic repetition of sound and CBD will tend to resolve these problems, it could be extrapolated that CBD’s potentially will help with stuttering challenges.
It does seem worth a try to use CBD oil.
drolson