Turmeric is the spice that make curry powder bright yellow. It’s also flavorful and a powerful anti-inflammatory. Turmeric was also traditionally used as a natural fabric dye and can ruin your clothes, so be careful cooking with it. When it comes to foods that stain teeth, though its health benefits are immense, your smile may suffer.
13. Balsamic Vinegar
This richly colored vinegar adds a powerful punch of flavor to food but it can damage teeth both with its acidity and its dark hue.