[Jacqui_D]

I saw on a tv program years ago that you can't smell you own breath because your nose is too close to your mouth. If you really want to know what your breathe smells like, lick the inside of your wrist, give it a few seconds and then smell your wrist. It definitely works.

[Bright Angel]

This is my 7th week in Ketosis and I've had no bad breath.
I'm doing Nutritional Ketosis and testing ketones with blood strips.

Jennie Ruhl of Blood Sugar 101 says that bad breath in Low-carb
can be avoided by reducing one's protein down to the required amount.
She has a low-carb nutritional calculator at her low-carb site
which will show you how much that is for you.
This can easily be found via a Google search.