There are so many vegetarians/vegans on bad breath forums, so no.
Also, there's somebody on a paleo Diet Forum who cured his bad breath with a zero carb diet (nothing but meat), this is what i'm currently trying, i can't say yet if it's working but my mouth doesn't taste like SHIT anymore. The theory is that candida/yeast feeds on carbohydrates so if you stop eating carbs, it will starve and die after a couple months and your bb problem will be over.