Some foods can help: crispy apples and celery mildly polish surface areas; while not a substitute for whitening

https://andersonwmsf170.yousher.com/how-to-whiten-your-teeth-before-a-major-event-or-wedding-event-1

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