Can a poor diet cause tooth decay?

Yes, a poor diet can cause tooth decay.

Tooth decay is caused by bacteria that feed on the sugars in food and drinks. When these bacteria eat sugar, they produce acids that attack the teeth and cause cavities.

A diet high in sugary foods and drinks, such as candy, soda, and fruit juices, can increase your risk of tooth decay. Starchy foods, such as bread, pasta, and rice, can also break down into sugar, feeding cavity-causing bacteria.

Eating a healthy diet that is low in sugar and starch can help to protect your teeth from decay. Foods that are high in calcium, such as milk, yoghurt, and cheese, can also help to strengthen teeth.

In addition to eating a healthy diet, brushing your teeth twice a day, flossing regularly, and seeing your dentist for regular checkups and cleanings can also help to prevent tooth decay.