Did you know that eating snacks throughout the day is actually not good for your teeth? This is because the health of your teeth and gums partially depends on the level of acidity (also known as pH) in your mouth. Ideally your mouth will have a neutral pH. Every time you snack, harmful acids and bacteria are left behind, which can cause your mouth to return to a neutral pH more slowly. If your teeth are exposed to enough acids, you can develop cavities. Why is snacking worse than eating main meals? Typically, it's because you don't drink a beverage like you would with a meal, nor brush after every snack, so snacks tend to stick around in your mouth longer than your meal does.