First ... ketones are made in the liver, from the fatty acids that are produced when your fat cells are burned. So, the ketones travel around in your bloodstream -- and they are either

1. used up as fuel by the brain, muscles and organs
2. filtered through the kidneys into the urine
3. flitered through the intestinal wall into the bowel contents
4. filtered through the lungs into the breath

To eliminate or at least reduce the amount of ketones that are released in your breath, you need to get the other three systmes working more efficiently.

1. Get more exercise! Burn up those ketones!
   
2. Drink more water! Keep those kidneys flushed, and prevent the ketones from concentrating in the blood
   
3. Keep the bowel moving regularly. Eat plenty of high-fiber lowcarb veggies, fruits (if allowed), raw nuts and seeds. Take a fiber supplement such as psyllium husks or sugar-free Metamucil, and be sure to drink plenty of water as well.

Gum and candies will just cover up, since the ketone odour is coming from the lungs, not the mouth. However, they can be a quick fix ... just be aware of the carb count ... many "sugar-free" candies etc do have carbs nonetheless. Frequent brushing and flossing, and rinsing with plain or slightly salted water will freshen the breath as well.

As for a fishy body odour ..... the problem is more likely from the breakdown of proteins, in particular urea, which is a precursor of ammonia .... If you've been eating a high-carb diet, then switch over to eating a lot more protein ... there will be more nitrogen-rich waste products in your system. The solution is the same as for ridding your body of excess ketones ... drink more water and make sure you are getting lots of fiber to flush the kidneys and keep the bowel regular.

Doreen