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Cranberry juice can remove dental plaque

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Want to remove plaque on your teeth?  Then drink a glass of unsweetened cranberry juice every day.

The juice naturally removes dental plaque and reduces the acids in the mouth that drive tooth decay, researchers from the University of Illinois Chicago have discovered.

They tested the juice on 22 volunteers, including 14 children, who were given either pure, unsweetened 100% cranberry juice, a cranberry juice cocktail containing 27% juice and added sugar, or plain water.

Their dental plaque levels were measured before and after the test, and only those who drank the unsweetened cranberry juice saw a slowing of plaque buildup afterwards.

Cranberry juice is known to help prevent urinary tract infections, and the compounds called proanthocyanidins that lower the risk may also be reducing dental plaque; the compounds have anti-inflammatory properties that interfere with the ability of certain bacteria, including E. coli, to attach to cells.

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References
Scientific Reports, 2026; 16 (1); doi: 10.1038/s41598-026-56025-3
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