We all know that,Walnutsare a very common type of nut, containing a variety of nutrients and offering good nutritional benefits.So, what causes the teeth to turn black after eating walnuts?Many people find that their teeth turn black after eating walnuts, which is a common phenomenon, primarily caused by the oxidation of the walnut shell after consumption.

So, what should you do if your teeth turn black after eating walnuts?Let's take a look at the solutions!Why do walnuts cause teeth to turn black?

Eating walnuts doesn't directly cause teeth to turn black. Teeth turn black mainly because the outer shell of the walnut is stained.

The outer shell of the walnut contains tannins and flavonoids, which, after chewing, attach to the teeth. In the air, these active ingredients quickly oxidize and turn brown, resulting in teeth turning black.What to do if your teeth turn black after eating walnuts?

Use a whitening toothpaste to brush your teeth.

Whitening toothpaste contains oxidizing agents or hydroxyapatite, which removes surface stains on teeth through friction and chemical bleaching, achieving a whitening effect.

Lemon

Rinse your mouth with water.Lemon acid has the function of removing stains and eliminating odors.

After brushing your teeth, use a small amount of lemon water to gently rub on your teeth. This can make your teeth white and shiny within 1 week. Lemon water also has the effect of improving the smell of your mouth.Ultrasonic cleaning

The principle of ultrasonic cleaning is to use the high-frequency vibration of ultrasound to remove stains on the teeth, thereby achieving the whitening effect of the teeth.

How to prevent teeth from turning black after eating walnuts?

Don't eat the walnut shell.

The outer shell of the walnut is the "culprit" that causes teeth to turn black after eating walnuts, so removing the shell before eating walnuts can prevent teeth from turning black.

Scientific brushing

Generally, brush your teeth in the morning and before bed, and each time brush for 3 minutes.

However, after eating foods with strong odors or dark colors, you can brush again, and you can extend the brushing time to 4-5 minutes.The bristles are at a 45-degree angle to the long axis of the tooth, and you should use short, horizontal brushing motions.How to remove the outer shell of the walnut?

The most common way to remove the outer shell of the walnut is to heat it to dry, making it easier to remove from the walnut.

You can soak it in boiling water for 3 minutes or directly roast it and peel it off.Use boiling water to soak for 3 minutes or peel off the outer skin after boiling.