If you have halitosis the first place to look for a cause is your mouth. You must brush your teeth and tongue after every meal, floss everyday and use a mouth wash in some cases. Get a dental check up and teeth cleaning. Your dentist can rule out conditions that lead to bad breath such as gum disease, tooth decay, or mouth sores. If your mouth is not the cause of bad breath the next step is to see if your digestive tract is at fault.
Poor digestion is sometimes the cause and digestive enzymes are often helpful.
If you get indigestion, sour stomach or constipation often, then you can probably guess that digestion is the cause of your bad breath. Chlorophyll tablets help freshen the breath and also improve the flora of the intestines. Acidophilus or bifidus supplements can be taken to maintain a healthy intestinal tract. Cutting out greasy foods and refined sugar from your diet can help digestive problems. If this does not help or you want to be certain that your digestive system is causing bad breath go to your physician.