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Foods that are good for your smile

By Kerri-Ann Jennings, March 2, 2012 - 2:09pm

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Last time I visited the dentist, we were having one of those awkward, mouth-full-of-toothpaste conversations. She was asking me about my work (I’m the associate nutrition editor of EatingWell Magazine and a registered dietitian, and I write a lot about food and health), when it occurred to me that I wanted to write about foods for healthier teeth (and by extension, a brighter smile).

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Here’s what I found out:

Crunchy and Chewy Foods
Crunchy and chewy foods—such as carrots, celery and nuts—cause saliva to flow; saliva neutralizes the acids formed by cavity-causing bacteria. (Sticky and sweet foods, on the other hand, help that bacteria to grow and develop into plaque—a bacterial buildup that can give rise to cavities. Watch out for these 6 surprising sources of sugar.)

Milk and Cheese
Milk and cheese are naturally good for your teeth. Not only do they provide calcium, which helps make teeth and bones strong, they also deliver casein, a protein that reduces cavity formation.

Garlic, Apples, Grapes, Shiitake Mushrooms, Cocoa and Nutmeg
Several foods directly combat the bacteria that cause cavities, bad breath and gum disease. Garlic, apples, grapes, shiitake mushrooms, cocoa and nutmeg contain compounds that may prevent cavity-causing bacteria from adhering to teeth. Raisins contain antioxidants that fight the growth of a type of bacteria that can cause inflammation and gum disease, according to research from the Illinois College of Dentistry. And green tea contains antioxidants called catechins that may tamp down the body’s inflammatory response to the bacteria that cause gum disease. A study found that a daily cup of green tea significantly lowered Japanese men’s risk of developing gum disease. (Add this one ingredient to maximize the flavor and health benefits of tea.) The polyphenols in black tea can help destroy the growth of bacteria that cause bad breath too.

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Water
Water keeps your throat and lips moist and prevents your mouth from feeling dry. Dry mouth can cause bad breath and/or an unpleasant taste—and can even promote cavities. (How much water do you really need? Find out here.)

Yogurt
Researchers from Japan, publishing their findings in the Journal of Periodontology, analyzed dietary intakes from nearly 1,000 adults and found those who consumed the highest levels of dairy—specifically yogurt and yogurt-type drinks—had the healthiest gums. They think the probiotics (a.k.a. “good bacteria”) in yogurt might be responsible for protecting gums. A 2005 study also found that yogurt can stop the growth of bad-breath-causing bacteria.

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What foods do you eat to keep your teeth healthy? Tell us what you think below.

TAGS: Kerri-Ann Jennings, Health Blog, Beauty, Health, Nutrition

Kerri-Ann Jennings
Kerri-Ann Jennings is a registered dietitian with a master's degree in nutrition from Columbia University.

Kerri-Ann asks: What foods do you eat to keep your teeth healthy?

Tell us what you think:

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