Enamel is the hardest substance in the body, but it doesn't grow back. Every time you eat sugar or acid, the surface softens slightly and loses minerals; saliva then slowly puts them back. Healthy teeth are mostly about tipping that balance in your favour — and food plays a big part.
Foods that help
- Dairy — curd, paneer, cheese and milk provide calcium and phosphate, and cheese in particular helps neutralise acid after a meal.
- Crunchy vegetables and fruit — carrots, cucumber, apples and guava need chewing, which increases saliva, your mouth's natural defence.
- Leafy greens, nuts and seeds — good sources of calcium and other minerals.
- Fish and eggs — sources of vitamin D, which the body needs to use calcium.
- Water — especially after meals. It rinses away food and acid, and tap water may contain fluoride.
Habits that do quiet damage
- Sipping sweet tea, coffee or juice slowly through the day. How often you have sugar matters more than how much — every sip restarts the acid attack.
- Sticky sweets and biscuits that cling to the grooves of the back teeth.
- Frequent acidic drinks — colas, sports drinks and lemon water. These soften enamel directly.
- Brushing straight after something acidic. Wait about 30 minutes so the softened enamel can recover first.
Food doesn't replace cleaning
Even with a good diet, plaque hardens into tartar in places a toothbrush can't reach, and only a professional cleaning removes it. Brush twice a day with fluoride toothpaste, clean between your teeth, and come in for a check-up and cleaning every six months. Read about what a professional cleaning involves on our teeth cleaning page.
