Bad breath; scientifically known as halitosis, is an unfortunate occurrence for some people and is not completely cured by pristine oral health.

The typical symptoms of bad breath include but are not limited to:

  • Post-nasal drip
  • A metallic taste
  • White film on the tongue
  • Thickened saliva

There are many causes of bad breath but these are the 4 causes of bad breath that are very common:

Dry mouth 

– A dry mouth is the ultimate petri dish for bacteria growth. Too much speaking, smoking, alcohol consumption and snoring are a few causes for dry mouth. Most people have bad breath in the morning from a lack of saliva production during the night.


– Bad breath can become worse by consuming onions and garlic because they contain smelly sulfur compounds. Dairy, meat and fish contain dense proteins which are used as a food source by sulfur-producing bacteria that cause bad breath. Refined and processed sugars also provide a life source for bacteria. Coffee and juice can contribute to bad breath because they are acidic and provide the bacteria with optimal breeding standards.

Poor dental hygiene 

– Inadequate oral care leads to a buildup of bacteria on the teeth and gums. This in turn leads to gum disease which can cause halitosis because the proteins from bleeding gums and infected oral tissue provide breeding grounds for odor-causing bacteria.

Illness and disease 

– Those who suffer from diabetes, lung disease, kidney disease, cancer, liver disease, respiratory tract infections or metabolic disorders are more likely to have chronic bad breath due to dry mouth. Sinusitis, pneumonia, bronchitis, postnasal drip and polyps affect the airways and potentially cause halitosis. Antidepressants, high blood pressure medications and antihistamines can cause bad breath because they inhibit saliva production.