The Sweet Truth - How Sugar Eats Your Teeth
It’s not just how much sugar you eat - it’s how often
Tooth decay starts when plaque bacteria feed on sugar and produce acids. These acids then attack your enamel, leading to cavities and dental erosion. Every sugary snack or sip restarts the acid attack — and the more frequently it happens, the harder it is for your teeth to recover.
Common Culprits (Even the “Healthy” Ones)
According to the NZDA, drinks are one of the biggest hidden sources of sugar. Check out how much sugar is in a single serving:
- Fruit juice (400 mL): 9 tsp
- Soft drink (600 mL): 13 tsp
- Sports drink (750 mL): 10 tsp
- Flavoured milk (375 mL): 8 tsp
- Energy drink (500 mL): 15 tsp
- Smoothie (350 mL): 9 tsp
- Water: 0 tsp
Even “healthy” drinks can be surprisingly sugary or acidic.
What You Can Do:
· Limit sugary snacks and drinks, especially between meals
· Drink water, especially after eating
· Rinse your mouth if brushing isn’t possible right after
· Use a fluoride toothpaste to strengthen your enamel
· See your dentist regularly to check for early decay
Tip from Avonhead Dental: Switch to water where you can, and stock up on fluoride toothpaste in our Dental Product Range.
👉 Up next: how acidic drinks (even sugar-free ones) can still damage your teeth.
