Over the years, you’ll notice your teeth turning a few shades darker. Tooth discoloration is a natural part of the aging process, but there are also several other factors that can impact the severity of the change. Among the biggest influencers to affect the color of your teeth are the foods and drinks you consume. Here are 5 foods you should avoid to keep your teeth bright. If your smile has already lost its luster, you can turn back the hands of time with teeth whitening.