Also, make sure to avoid candy and highly-sweetened foods like sugary breakfast cereals, chocolates and chocolate milk, sugary drinks and fizzy drinks, as these are loaded with sugar, which increases acid levels from bacteria in the mouth.
The best thirst quencher is also the smartest choice for your teeth. Water helps wash acid-producing foods from the mouth, it hydrates the mouth and it manages xerostomia which is the main cause behind bad breath.
Lastly, regular brushing and flossing, as well as periodical visits to your dentist always remain your best protection against tooth decay and gum problems.