Good Bacteria, Good Breath: The Role of Probiotics in Combating Bad Breath

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Bad breath, also known as halitosis, is a common oral problem affecting millions worldwide. It can be caused by various issues such as poor oral hygiene, gum disease, dry mouth, and even food. One of the most natural and effective solutions is using probiotics for bad breath. Probiotics are live bacteria that can be originate in various foods and supplements and are known to boost the immune system, improve digestion, and maintain a well balance of bacteria in the gut.

Probiotics and Bad Breath

The human mouth is home to a diverse population of bacteria. While some bacteria are harmless, others can cause dental problems and bad breath. The main culprits of bad breath are sulphur-producing bacteria on the tongue and in the crevices between teeth and gums. These bacteria break down proteins in the mouth, releasing foul-smelling compounds such as hydrogen sulphide and methyl mercaptan.

Probiotics for bad breath introduce beneficial bacteria into the oral microbiome. These bacteria can compete with the sulphur-producing bacteria, reducing their numbers and odour. In addition, probiotics can also help to maintain a balanced pH level in the mouth, which can contribute to fresher breath.

Probiotic Strains for Bad Breath

Not all probiotics are created equal when it comes to combating bad breath. Some strains of bacteria have been found to be more effective than others in reducing sulphur-producing bacteria and improving breath odour.

  • One of the most promising strains of bacteria for bad breath is Streptococcus salivarius K12. This probiotic strain is naturally found in the mouth and can help reduce harmful bacteria that cause bad breath. Studies have shown that taking S. salivarius K12 supplements can significantly reduce halitosis.
  • Another effective probiotic strain for bad breath is Lactobacillus salivarius. This strain has been found to reduce the number of sulphur-producing bacteria in the mouth and improve gum health. L. salivarius can be found in various probiotic supplements and fermented foods such as yogurt and kefir.
  • Other probiotic strains that may be helpful in combating bad breath include Bifidobacterium bifidum, Lactobacillus reuteri, and Streptococcus thermophilus. Remember that the effectiveness of probiotics in improving bad breath may vary from person to person, depending on factors such as the individual’s oral microbiome and overall health.

How to Incorporate Probiotics for Better Breath

There are many ways to incorporate probiotics into your diet and oral care routine to improve bad breath. One simple way is to consume probiotic-rich foods such as yogurt, kefir, sauerkraut, and kimchi.

Another way to incorporate probiotics is through supplements. Probiotic supplements come in various forms, such as capsules, powders, and tablets. It is important to choose a high-quality supplement that contains a variety of probiotic strains, including those that are effective for reducing bad breath.

In addition to consuming probiotics, it is also important to maintain good oral hygiene practices such as brushing twice a day, flossing daily, and using mouthwash. These practices can help remove plaque and food debris from the mouth, contributing to bad breath. Staying hydrated by drinking plenty of water throughout the day is important, as a dry mouth can worsen bad breath.


Bad breath can be embarrassing, but there are many ways to combat it. Probiotics offer a natural and effective way to improve bad breath by introducing beneficial bacteria into the oral microbiome. While not all probiotics are created equal, strains such as Streptococcus salivarius K12 and Lactobacillus salivarius have been found to be particularly effective. You can enjoy the benefits of fresher breath and a healthier mouth by incorporating probiotics into your diet and oral care routine.

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