Lifestyle habits that can yellow teeth
Then there are risk factors that are typically within a person’s control. Yellow teeth can result from a diet high in sugar and simple carbohydrates. Sugar is notoriously bad for oral health because of the risk of cavities. But in general, a diet low in nutrients can affect the brightness of a smile.
Even healthy foods can stain overtime, such as blueberries, beets, tomato sauce, soy sauce, grape and cranberry juice. You can help prevent staining by drinking coffee, tea, and wine through straws. Additionally, smoking or chewing tobacco can stain teeth and make them look “dirty”.