“It doesn’t matter whether it’s refined white sugar, brown sugar or honey, sugar is sugar,” says dentist Alastair Nicoll. “It’s not the amount, but how often you eat it.” Sugar creates an acidic environment in your mouth, which persists for about two hours after it’s consumed. If you eat or drink a little bit of sugar every few hours, your teeth will be continuously bathed in the acid, which directly dissolves tooth enamel.
And watch out for high amounts of sugar found in many processed foods, including ketchup and spaghetti sauces. Be aware that juices that have no added sugar still contain natural sugar.
The fix: If you are eating foods with lots of sugar, it’s better to consume them during meals rather than as snacks because your mouth produces more saliva during meals, which helps neutralize acid production. Twenty minutes after eating is the ideal time to brush your teeth. That’s because, by that time, saliva has remineralized the enamel that has been dissolved by acid.