America's new #1 snack food? Gum! So wouldn't it be lovely to enjoy your favorite snack several times a day and all the while whiten your teeth?

The thought sounds appealing, but unfortunately, whitening gums are not known for their dramatic effectiveness.

Nevertheless, studies have shown slight whitening for people who chew whitening gum several times daily for several weeks. If you enjoy chewing gum anyway, there is no extra harm associated with choosing a whitening gum. But if you're looking for serious results, choose a different whitening procedure.