New study shows postbiotic gummies fight gum disease

Japanese researchers developed innovative postbiotic gummies that successfully reduced gum bleeding and improved oral hygiene markers in individuals with mild gingivitis. The trial aimed to find a convenient way to protect against damaging gum disease beyond standard brushing and flossing routines.

The findings were published in The Journal of Periodontology. A team led by scientists from the Institute of Science Tokyo, conducted the clinical trial to investigate alternative methods of managing oral health by restoring a symbiotic mouth microbiota, rather than solely focusing on bacterial eradication.

The six-week study evaluated 116 participants, with roughly half consuming the postbiotic gummies twice daily, while the remaining half unknowingly ate placebos. Instead of live probiotics, the researchers utilised heat-killed Lactiplantibacillus pentosus bacteria. These postbiotics are highly stable, making them easier to manufacture, store, and successfully package into treats.

The trial demonstrated that the bacteria-loaded treats effectively lowered Bleeding On Probing, which is a standard measurement of inflamed gums. In the group eating the active gummies, bleeding dropped from an average of 17.6 per cent to 12.3 per cent, whereas the placebo group saw a minor reduction from 18.9 per cent to 16.6 per cent.

Institute of Science Tokyo periodontologist Takanori Iwata explained that evaluating the treats under normal daily living conditions helped the team understand their practical potential for supporting gum health. He noted that chewing increases salivary flow and prolongs the contact of the active agents with oral tissues, which likely aided the reduction in bleeding.

Crucially, these outcomes were achieved without providing participants with any specific oral hygiene instructions. The researchers concluded that postbiotic-based approaches could support the management of gingival inflammation in individuals at an increased risk of periodontal disease. With up to 1.5 billion people projected to be at risk of severe gum disease by 2050, the team now plans to investigate how these bacteria reduce bleeding at a fundamental level over a longer period.