Thus you can never tell if you have bad breath or not only by smelling your own breath. Now, how can you tell if you have bad breath or not? The simplest way is by asking a 5-year old child. They never lie. Or, you can use a halimeter. This is a device that tells you the amount of VSCs present in your mouth. To make sure that you have a pleasant breath, just maintain a good oral hygiene. Brushing alone will not prevent bad breath Different people have different ways to brush their teeth. Some complete their tooth brushing under a minute while some require more than that. But no matter how quick or how long you brush your teeth, it does not ensure that you will no longer have bad breath. They are also effective in cleaning your teeth naturally. And since prevention is proven better than cure, stay away certain foods that can cause bad breath like onion and garlic. 7. Let the dentist fix your problem teeth. Plaque, tartar, and cavities can all lead to bad breath. So make sure you go to the dentist and have them all removed/fixed/treated. There are various causes that trigger the overproduction of sulfur in the mouth. One of these is the type of food we eat. There are plenty of times in the past that the very food we consumed left the smell in our mouth. Such are the effects of garlic, onion and cabbage. This also explains why people who eat large amount of spices are more likely to produce body smell and bad breath. It could be resolved by practicing nasal breathing, both during unconscious and conscious states. With foul odor in the breath, the mouth could also be marked with sour, bitter or metallic tastes. This is especially true when you have just finished eating ingredients that have odor-producing properties such as garlic, onion, tea and coffee. Breath freshener gums To fight bad breath is to attack the root of the problem. Chewing breath freshener gums only masks bad breath and not effective in ending the problem. Intestinal cleansing method. Most bad breath cases originate in the mouth and not in the intestine so using the intestinal cleansing method to fight bad breath is completely pointless.