I also support u/_groundcontrol, if someone is trying to sell you food that is supposed to "Cure" your stuttering, it's a hoax. Don't waste your money. With that said. Coffee on an empty stomach makes my stuttering worse. The caffeine gives me the jitters. Alcohol also helps the stuttering. But it also makes me sleepy and sloppy. So does smoking weed. Don't do both at the same time.