No I'm on a pretty healthy balanced diet including carbs. I think mine must be either part of the neuropathy - which does affect my mouth - or bruxism for which I use a night guard but still... Perhaps this grinding is the cause? Or GORD related perhaps? My hubby and sons assure me I don't have smelly breath but it really is a distressing and very longstanding symptom. It really affects my relationship with food I must say. It's like a sour milk, rotten meat sort of taste - the relief comes with salty tasting saliva I dredge from my throat. Or sugar free gum/ boiled sweets. Ugh!