In a study detailed at the 83rd General Session of the International Association for Dental Research, Dr. Kenichi Hojo of Tsurumi University in Yokohama, Japan, found that sugarless yogurt significantly reduced the levels of oral hydrogen sulfide (which smells like rotten eggs, and is one of the main components of bad breath) in 80% of participants.
The 24 volunteers who partook in the study followed strict instructions on oral hygiene, diet and medication intake. The participants first avoided all yogurts for 2 weeks and then had samples of VSCs taken from their mouths. They then ate 90-grams (about 3 ounces) of sugarless yogurt twice-a-day for 6-weeks.
At the end of the study, more samples were taken and a significant reduction in hydrogen sulfide levels was discovered in 80% of participants.
It was postulated that active bacteria in the yogurt, specifically Lactobacillus bulgaricus and Streptococcus thermophilus effectively drowned-out the bacteria responsible for producing the hydrogen sulfide.
While that doesn't effectively address the root cause of bad breath, it does show fighting bad breath doesn't have to be unpleasant. After all, what could be more pleasant than a pot of tasty yogurt every day!?
To apply findings of this study, simply eat about 3-ounces of sugar-free yogurt containing live
cultures of Lactobacillus bulgaricus and Streptococcus thermopholis (check the labels) every day.