Smell from the mouth. Scientists explain why yogurt helps to get rid of a delicate problem
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A new study has shown that eating yogurt and other fermented foods can eliminate bad breath.
Bad breath is a major embarrassment for those who suffer from it, but there are several solutions. One of the main factors is the food you eat. Researchers say the probiotic bacteria in yogurt, sourdough bread and miso soup could be the solution, JPost writes.
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Bad breath affects about 25% of people and is the third most common reason for visiting the dentist after cavities and gum disease. In addition to embarrassment, bad breath causes significant discomfort to those who suffer from it.
In a new study, scientists say compounds that are the product of interactions between oral bacteria and food debris are associated with poor oral hygiene. Typical options for dealing with bad breath include rinsing your mouth, chewing gum, and even brushing your tongue. However, the researchers note that there is evidence that probiotic bacteria are an easier alternative for treating bad breath. The researchers analyzed databases of relevant clinical trials published up to February 2021. Of the initial 238 entries, the team focused on seven studies involving a total of 278 people. The number of participants in each study was small, ranging from 23 to 68, aged 19 to 70 years. The studies lasted from two to twelve weeks.
The team determined the severity of bad breath from the levels of volatile sulfur compounds found in the mouth and from a scale that measures breath odor at different distances. Tongue plaque scores and plaque index were also included in the analysis, as an unclean tongue and tartar buildup between teeth are often the main causes of bad breath.
Data analysis showed that odor index scores decreased significantly among those who took probiotics compared to those in control groups, regardless of the length of the observation period. The results were similar for the levels of volatile sulfur compounds found, although they varied “substantially” in individual studies. The observed effects were also relatively short, up to four weeks, after which there was no noticeable difference.
However, there were no significant differences in tongue plaque levels or plaque index between those who ate probiotics and those who did not. The authors of the study believe that probiotics can inhibit the breakdown of amino acids and proteins by anaerobic bacteria in the mouth, which stops the formation of malodorous by-products. However, the researchers caution that these results are from studies with small sample sizes and some data are incomplete.
This systematic review and meta-analysis shows that probiotics such as Lactobacillus salivarius, Lactobacillus reuteri, Streptococcus salivarius and Weissella cibaria may alleviate bad breath by short-term reductions in volatile sulfur compounds, but do not significantly affect the main causes of bad breath, such as plaque and the need to clean the tongue, the study authors said. They concluded that better randomized clinical trials are needed to confirm the results and show that probiotics can effectively treat bad breath.