Eliminating tonsil stones accumulated at the back of the throat helps achieve much better breath.

noli's read

Tonsil stones are indeed composed of a mixture of food debris, dead cells, and bacteria that thrive without oxygen and release strong-smelling gases, as confirmed by laboratory analyses (Université Lyon 1 / Dr. Rotenberg). These small white beads are therefore truly a proven source of unpleasant odor at the back of the throat. However, presenting their removal as the key solution for breath remains an exaggeration. A literature review (published in the journal Otolaryngology–Head and Neck Surgery) notes that tonsil stones are involved in only about 3% of overall breath issues. For the vast majority of people, the odor instead originates from the back of the tongue or gum health. Finally, manual self-extraction at home (with a cotton swab or a tool) lacks evidence of safety and efficacy (no controlled clinical studies) and can irritate the throat, with leading health institutions (such as the Cleveland Clinic) advising simple warm salt water gargles to dislodge them gently.

the sources

No named source held this one up — that absence is part of the verdict.