Citrus Fruits Can Damage Teeth
Some beauty gurus suggest using citrus fruits to whiten teeth. The high acidity may result in pearly whites temporarily, but in the long term, it can leech the calcium from your teeth. The result is an off-white stain that is even harder to improve.
The Oral Health Foundation warns that foods with a low pH, like citrus fruits, may cause erosion, especially when combined with brushing. Avoid DIY teeth whitening instructions that suggest mixing baking soda with lemon juice and brushing it over your teeth.
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