Eating strawberries: Whitening action of strawberries is attributed to malic acid and vitamin C. Astringent is effective in removing the stains.
Cauliflower: It works to whiten the teeth because it functions as an abrasive scrub. They also stimulate the production of saliva, which helps keep plaque from forming.
Oranges: Eat plenty of oranges for Vitamin C which promotes healthy teeth and gums and aids the absorption of iron. Interestingly, chewable Vitamin C can cause enamel loss from teeth.
Dairy products: Yogurt, milk and hard cheeses like cheddar contain lactic acid, which may help protect teeth against decay. Dairy is also enriched with calcium, which guards and strengthens bones that hold teeth in place. Also, chewing hard cheese creates saliva that helps remove food particles that stain.
Watermelon: A hefty 25 percent of the daily value for Vitamin C could be found in two cups of watermelon. An essential vitamin healthy for teeth and gums. Vitamin C helps in the absorption of iron. It also has antioxidant properties, helping to prevent cell damage by neutralising “free radicals” -molecules believed to be associated with dental aging. Studies have shown that people who eat foods high in vitamin C such as watermelon have lower rates of gum diseases.
Grapes: Malic acid, an enzyme found in grapes, helps to keep your teeth white.
Green beans: These fresh greens can help scrub your mouth clean, and stimulate the flow of saliva.
Water: Water works to reduce staining. Sip only a little water during your meals and give a final swish (and swallow) after a meal.
Oil pulling: It is home remedy of swishing oils in the mouth to achieve good oral health.
Baking soda and lemon:The chemical reaction of baking soda with the citrus of lemon juice has a smile-brightening effect. Either one of these ingredients works well, but together the effect is enhanced.