Possibly. When you drastically reduce your carb intake, your body breaks down fat for energy. As your body does this, foul-smelling chemicals called ketones are released through a process called ketosis. It’s unknown how harmful this is for your health in the long term, but a prolonged state of ketosis has been linked with kidney problems and gout.
As for controlling the odour, brushing your teeth and tongue, using a mouth rinse and flossing regularly might help improve your breath temporarily. Even drinking a cup of green tea a few times a day could help, according to a Canadian study. Researchers found that this was because of its disinfectant and deodorant activities. But the best fix of all may be to eat more carbs -- for the sake of your health and your breath.
