Acid is known to damage your teeth.
In fact, acid starts to weaken enamel at a pH (acid scale) below 5.5. Many of the food we eat and drinks we drink have a pH lower than that. Here’s a sample of the pH of some common foods and drinks
Water pH 7
Avocado pH 6.5
Banana pH 4.5-5.2
Beer pH 4.0-5.0
Salad Dressing pH 3.5-4.2
Orange Juice pH 3.4-3.8
Cola pH 2.4
Energy Drinks pH 2.4-3.6
Wine pH 2.3-3.8
Lemon Juice pH 2.2
Beware of the acidity of your food, make sure to drink some water after consuming something acidic, that way you can reduce the acidity in your mouth and the damage to your teeth!