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❓Why do teeth turn yellow?
🦷Some people have yellow or gray tooth enamel. This is heredity. Also, the color of the enamel can be affected by different foods. For example, carrots, spinach, tomatoes contain orange carotene pigment.
🧬This pigment enters the enamel holes. Grapes, greens, cherries and pomegranates contain chromogens that adhere well to the enamel surface.
🍵The tannin in tea and coffee causes tooth enamel to break down, which naturally causes yellowing. The teeth of smokers also turn yellow because tobacco contains a resin substance that makes teeth yellow.