Some foods can help: crunchy apples and celery slightly polish surfaces; while not an alternative to whitening

https://blogfreely.net/dernesvhbz/how-to-whiten-your-teeth-before-a-major-occasion-or-wedding

Some foods can help: crispy apples and celery mildly polish surface areas; while not a substitute for whitening, they support a cleaner, brighter-looking smile.