The reason why dentists say don't eat goldfish crackers is because the goldfish crackers when eaten create a sticky paste, which clings to your teeth.
The sticky paste that clings to your teeth from eating goldfish crackers makes a perfect breeding ground for bacteria that causes cavities.
The carbohydrates in the goldfish crackers break down into sugars and the bacteria feed on the sugars.
And the sticky texture of them makes them difficult to wash away in saliva, which results in prolonged acid attacks on your tooth enamel.
As you chew the goldfish crackers, the goldfish crackers turn into a sticky paste, which gets lodged into the grooves of your teeth as well as the crevices of your teeth.
The sticky residue then sits on your teeth for hours, and provides a food source for the bacteria that causes cavities.
The bacteria also break down the goldfish cracker's carbohydrates and produces acids, which attack and also demineralize your tooth enamel, which can lead to tooth decay.
Also goldfish crackers can also be worse than some candy as goldfish crackers are a savory and processed carb and some dentist also argue that goldfish crackers are even worse than candy, especially for children's teeth.
Because the goldfish crackers stick more easily to the teeth and for longer periods of time.
To protect your teeth from eating the goldfish crackers, reduce the amount of goldfish crackers that you eat and drink some water or eat them with a meal if possible to help wash away any residue.
And brush and floss your teeth immediately or pretty soon after you eat the goldfish crackers to remove any remaining residue.