Snacking is an activity we all do and what we choose to snack on is important. Snacks that are full of sugar such as candy or cake may taste good, but are not good for our teeth. Snacking is an activity we all do and what we choose to snack on is important. Snacks that are full of sugar such as candy or cake may taste good, but are not good for our teeth. Snacking is an activity we all do and what we choose to snack on is important. Snacks that are full of sugar such as candy or cake may taste good, but are not good for our teeth.