1. Portobello Mushrooms

This small but tasty food seems harmless at first glance. In fact, not so! Portobello mushrooms actually diminish the level of whiteness in your smile. If you can’t live without mushrooms in your diet, try to counteract their effect by biting into foods that are high in fibre.

Photo by Getty Images Jul 3, 2013

10 worst teeth staining culprits

Everyone wants a dazzling set of pearly whites, but it can be hard to achieve with the food and drink in our daily diet. We've rounded up the worst teeth staining culprits, and some of them might surprise you!