What to eat (and what not) to look after your teeth
In short: what damages teeth the most is sugar and acids, especially when they are consumed many times a day (snacking is worse than the one-off amount). To look after them, water, dairy products, fibrous fruit and vegetables and nuts all help. The golden rule: it is not just how much sugar you eat, but how many times you expose your teeth to it.
The real enemy: sugar (and frequency)
When you eat sugar, the bacteria in your mouth turn it into acid, and that acid attacks the enamel. That is how tooth decay begins. But there is a nuance that almost nobody knows:
What matters is not only how much sugar you eat, but how many times a day.
Eating a sweet treat all at once, at a meal, gives one acid attack. Nibbling on biscuits, sweets or sipping fizzy drinks all afternoon gives many attacks in a row, with no respite for the enamel to recover. That is why constant snacking is one of the worst things for your teeth.
Watch out for acids too
It is not just sugar. Fizzy drinks (even the “zero” ones), juices and an excess of citrus fruits are acidic and soften the enamel. A tip: if you have something acidic, do not brush immediately (wait a while), because brushing softened enamel wears it down. Better to rinse with water and wait.
The foods that help
The good news: eating can also look after your teeth.
| Allies | Why |
|---|---|
| Water | Washes away debris and maintains saliva, which protects |
| Dairy products (cheese, yoghurt) | Calcium that strengthens the enamel |
| Fibrous vegetables and fruit (carrot, apple) | “Clean” when you chew and stimulate saliva |
| Nuts | Nutritious and sugar-free |
Saliva is your natural defence: it neutralises acids and repairs the enamel. That is why a dry mouth increases the risk of tooth decay, as we explain in dry mouth.
Practical tips
- Concentrate sweets at mealtimes, not between meals.
- Drink water after eating, especially if it was sweet or acidic.
- Be careful with sticky “healthy” snacks (dried fruit, bars): they get stuck to the tooth.
- And, of course, brush well and clean between your teeth.
Diet is half the battle for dental health; the other half is hygiene and check-ups. If you want a healthy mouth without becoming obsessed, we will give you realistic guidelines in the surgery. The first visit is free. Book an appointment whenever you like.
Frequently asked questions
Which foods are bad for your teeth?
The most problematic are sugars (sweets, pastries, fizzy drinks) and acids (fizzy drinks, juices, citrus fruits in excess), especially if they are consumed often and between meals. It is not just how much sugar, but how many times a day you expose your teeth to it.
Does snacking between meals damage your teeth?
Yes, more than it seems. Every time you eat something, especially something sweet or acidic, the enamel suffers for a while. Snacking many times a day keeps that attack almost constant. It is better to concentrate sugar at mealtimes than to spread it across countless snacks.
Which foods help to keep teeth healthy?
Water, dairy products (which provide calcium), fibrous vegetables and fruit that 'clean' when you chew, and nuts. And drinking water after eating helps to wash away debris. A varied diet that is low in sugar is your teeth's best ally.
Can we help with your case?
Free first consultation and diagnosis in Bilbao, no commitment.
