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A nice bright and white smile can be sign of good dental hygiene and maintenance. Even though there are several whitening products out there, ranging from toothpastes to gels, there is an easier way to boost your teeth's whiteness.

Here are 10 foods that can whiten teeth:

1. Strawberries

Although strawberries have a rich red color, they do not stain the teeth. Instead, strawberries have malic acid, which is a natural astringent that can help with teeth discoloration.

2. Seeds and nuts

Seeds and nuts can help whiten teeth because they are abrasive. The hardness of seeds and nuts can rub off plaque as well as stains.

3. Apples

Similar to seeds and nuts, apples' crunchy texture can rub away plaque and stains while strengthening your gums. The high water content in apples also triggers saliva production that helps neutralize bacteria.

4. Celery and carrots

Celery and carrots also have a high water content that causes saliva production. The extra saliva can prevent pieces from getting lodged into between your teeth. The crunchiness can also make your gums stronger.

5. Onions

Onions might not be the best option if you want good smelling breath. However, since they smell bad, you are more likely going to brush your teeth after, which can help whiten your teeth. Onions are also colorless so they will not stain.

6. Broccoli

Raw broccoli can act as a sponge for your teeth. Every single chew is getting rid of stains and plaque buildup on the surface of the teeth. Broccoli also does not stay stuck in teeth.

7. Dairy

Diary products, such as cheese, milk and yogurt are packed with calcium, which is a mineral that strengthens both your teeth and gums. These three dairy products are also colorless so it will not stain your teeth. Not all calcium-rich foods lead to a whiter smile. Certain foods, such as spinach, can stain your teeth.

8. Oranges

Oranges have citrus, which is an acid that can make teeth whiter. However, when consumed in excess, the citrus can wear and tear at the teeth's enamel. In order to prevent teeth decay, eat organs in moderation.

9. Water

Water can help keep your teeth white because it lowers the acidity in your mouth, which can also prevent any damage to your enamel. Drinking water in between glasses of red wine or during a meal that consists of dark foods can be especially beneficial for your teeth. Just remember to stick to regular water. Too much sparkling water can lead to enamel erosion.

10. Pears

Pears can combat odor while preventing bacteria from colonizing on the teeth. In addition, these fruits also stimulate saliva production.