Multiple choice general knowledge

Which of these are natural teeth whiteners?

  1. Green tea

  2. Strawberries

  3. Lemons

  4. Bananas

Reveal answer Fill a bubble to check yourself
B,C Correct answer
Explanation

Strawberries contain malic acid, a natural astringent that can help remove surface stains from teeth. Lemons contain citric acid and have mild bleaching properties. Both fruits act as natural whiteners when used cautiously. Green tea and bananas do not have significant teeth whitening properties.